Want to know what the most expensive item in the world is by weight and volume? It's
not a diamond or other rare gem. It's actually a piece of paper.
The "Treskilling" Yellow, or 3 skilling banco error of color is a postage stamp of
Sweden, and the most valuable stamp in the world. It last sale price, in 1992 was $2.27
M, or $87.4 billion (562 billion Swedish kronor, €59.6 billion/£44.4 billion) per kilogram
(in 2008) it is one of the most valuable things in the world by weight and by volume. It
is probably the only one of its kind in the world.
In 1855, Sweden issued its first postage stamps, a set of five depicting the Swedish
coat of arms, with denominations ranging from 3 to 24 skillings banco. The 3-skilling
banco value was normally printed in a blue-green color, while the 8-skilling was printed
in a yellowish orange shade. It is not known exactly what went wrong, but the most
likely explanation is that a cliché of the 8-skilling printing plate (which consisted of 100
clichés assembled into a 10 x 10 array) was damaged or broken, and mistakenly
replaced with a 3-skilling cliché. The number of stamps printed in the wrong color is
unknown.
Three years later, Sweden changed its currency. The skilling stamps were replaced by
new stamps denominated in öre. It wasn't until 1886 that Georg Wilhelm Baeckman, a
14-year-old school boy, discovered the stamp among his grandmother's possessions
and sold it to stamp dealer Heinrich Lichenstein,for the then-lofty price of 7 kronor.
The stamp traded hands several times over the next decade, fetching ever higher prices
and inspiring collectors to search for more Treskilling Yellows. But no other was ever
found. Its most recent owner bought it at auction on November 8, 1996 for the sum of
$2.27M. Each time it has been sold it has set world records.

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The Tre Skilling Banco Yellow is one of the rarest known stamps. It was printed in yellow instead of green. It is the only sample known to exist. Its last purchase price, in 1992, was $2.27M.
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Answer to Quiz #146 - February 2, 2008
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Other Extremely Rare Stamps
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Only one copy of the 1¢ British Guiana stamp is known to exist. It is a heavily
cancelled octagonal stamp in used condition, with a signature on its left hand side. The
issue came through mischance. An anticipated arrival of stamps never arrived by ship in
1856, so the local postmaster, E.T.E. Dalton, authorised a printer, Joseph Baum and
William Dallas, who were the publishers of the Official Gazette newspaper in
Georgetown, to print out an emergency issue of three stamps. Dalton gave some
specifications about the design, but the printer chose to add a ship image of his own
design on the stamp series. Dalton was not pleased with the end result, and as a
safeguard against forgery ordered that all correspondence bearing the stamps be
autographed by the post office clerks. This particular stamp was initialed E.D.W. by the
clerk E.D.Wight. The current owner of the stamp, Mr. John Dupont the eccentric
multi-millionaire who is serving a thirty-year jail sentence for murder, purchased it in
1980 for the sum of $935,000. The exact present whereabouts of the 1¢ magenta is
unknown - but is believed to be in a bank vault in Philadelphia. Read more...
Note: There are other unique stamps that, were they to be sold today, perhaps would
surpass the value of any of the stamps described below.
The Benjamin Franklin Z-Grill is a 1-cent postage stamp issued by the United States
Postal Service in 1868 depicting Benjamin Franklin. With the embossed "Z-Grill"
"waffle" on the back, this is considered the rarest and most valuable US stamp. The
purpose of the grills was to permit the canceling ink to be absorbed into the stamp
paper, thus preventing those who wanted to from cheating the postal service by
washing out cancellation marks. The use of grills was not found to be practical and
they were soon discontinued. There are currently only two known 1-cent 1868
Z-Grills. In 1998 a 1 cent "Z-Grill" stamp sold for $935,000 to Mystic Stamp Company.
Read more...
One Cent Penny Black The first adhesive postage stamp Read more...
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Purchase price of Tree Skilling Not adjusted for inflation. Click on thumbnail to see larger image.
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The most valuable stamp item in history is the 1847 envelope franked with the 1d and
2d Mauritius stamps and mailed to Bordeaux France - ordering 30 barrels of wine!
The "Bordeaux Letter" sold for 5,750,000 Swiss Francs (today worth about $6.5
million) to a Singapore collector. In November 1993 it was sold at the Feldman "Kanai"
auction. In 1995, the Bordeaux cover was purchased by European collector-dealer
Guido Craveri, who also paid over $US2 million for a 1851 Hawaii cover in a Siegel
Auction in New York.
All of the google clues are on the stamp: Sverige= Sweden. Frimarke=stamp in Denmark, Sweden or Norway. Swedish stamps first issued in 1855. On the bottom of the stamp are the letters: "tre skill.bco." At top of google results: "stamp collection AG". At top of result list for that:
The most valuable stamp in the world: The Treskilling Yellow or the three skilling banco was issued in 1855 by the Swedish Government.
The image of the said stamp is apparently being licensed by various companies to market their products and brands. Some education on physically sending mail to others: Definition of word stamp: a stamp is a piece of paper that is affixed to letters or packages to pay for their delivery. We have the constitutional guarantee that our piece of mail will arrive at its intended destination in a timely manner unopened. Stamps are normally affixed to the upper right hand corner of a piece of mail: envelope, card or package. The cancellation mark is proof that our piece of mail was received and sent. In olden days circa before ???, mail to others was sealed by some sort of wax, metal, clay, wood, etc. seal affixed where the edges of mail were wrapped, sealed and protected from prying eyes. The seal would carry the identifying mark of the sender. Mike Dalton
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The mass, volume and density of the Swedish 'Tre Skilling Banco' classic have recently
been measured for the first time by The Swedish National Testing and Research
Institute in Borås, Sweden.
The weight has been measured to 0.02675 grams (0.0009 ounces), which gives the
stamp the staggering price of $US85.98 billion per kilogram. This makes the stamp the
most valuable thing in the world per weight or volume. Advanced measurement
equipment was used to perform the unusual task, and a sophisticated optical
microscope was used in order to calculate the exact surface area, a difficult task
considering the perforations on the stamp.
"It would have been too risky to use the original. Instead we used another stamp, an
'Eight Skilling Banco' from the same printing series, which has the same physical
properties as the rarity. This other stamp is relatively inexpensive, worth around
$US1,500, which made us all a bit less nervous" claimed Mats Lidbeck, measurement
expert at The Swedish National Testing and Research Institute.
Mike's Suggestions for Solving the Puzzle
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Links for Further Reading
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The stamp was then offered to the Swedish Postal Museum for $US1,000,000. The
curator Gilbert Svensson had always suspected it to be a forgery, and arranged for it to
be handed over to a group of nine Swedish stamp experts to examine.
The experts concluded it was a fake - possibly a fake of the original stamp that some of
them also thought was a fake anyway! They stated that one third of the stamp was of
a different paper type than the rest. And if differed in exterior appearance from early
photographs. One of the experts Friedrich Schaffer pointed the finger at original dealer
owner Lichtenstein as the forger/creator of this 'fake'. The experts publicly claimed the
story of the Backman sale in 1885 was a lie.
Why an Army Lieutenant Colonel would 'lie' about it 40 years later under sworn court
oath is a question I asked myself. Curator Svensonn when asked on TV by a reporter
as to its true worth said it was: "only worth the modest 7 Crowns that Lichtenstein was
supposed to have paid for it - with interest added".
In "Stamp Collecting" May 1975 it was stated that photomicrographic tests had shown
that the forger bleached a genuine lightly used 8 Skilling Banco to rid it of colour, and
then printed a fake 3 Skilling stamp image on top. (i.e. the technique always used
cleverly by Sperati.)
After all these damning reports, owner Berlingen and Frimarkshuset A.B. then paid for a
very detailed scientific and X-Ray report in 1975, by a Professor of Medial Biophysics,
on the paper and ink etc, which pointed they claim, to the stamp being a genuine colour
error.
Based on the last purchase price of $2.3M paid for the Tre Skilling:
(1) The most valuable painting in the world, a Jackson Pollock auctioned in 2006 for
$142.7M would be worth 65 Tre Skillings. (How many books of Green Stamps is this?)
(2) If you go by weight, assuming a Jackson Pollack weighs 20 lbs (no idea about this,
just a wild guess) it would take 5,567 Pollocks to purchase 1 Tre Skilling.
(3) If I carpeted my 1650 sq st house in Tre Skillings, assuming a Tre Skilling is about
1/3 sq in in surface area, it would cost about $1B.
* Not included in graph. Does not follow trend.
It's a too low by a factor of 3. Source might be in
error.
pds = British pounds
DM = Deutsch Mark
SF = Swiss Franc
I've been collecting stamps since I was a kid - inherited a very basic collection that my
uncles had started when they were kids in the 40s. I never thought it was a big deal,
but I have found over the years that I have a vast amount of knowledge about history
geography and foreign countries compared to my peers ("you mean you didn't know
that? I thought everybody did...") that I really attribute to stamp collecting since I was a
kid. It's never been about the money - and while I have managed to get some older
(and possibly rare) stamps in my collection - I have never had any interest in how
much they're worth - to me it's much more about the interesting historical story behind
the stamps or what a country feels is important about itself that it wants to portray to
its citizens and the outside world (one of my favorite sets of stamps is the set that
Turkey put out in 1953 to celebrate the 500th anniversary of their conquest of
Constantinople - of course we only ever hear of the other side of it!).
I'm sure the historical thing is in a similar vein to what you find fascinating about this
forensic genealogy stuff. Don't know if you have kids or not, but I can't stress
enough what a wealth of knowledge and enjoyment and appreciation of history and
geography it has instilled in me throughout the years and I can't encourage parents
enthusiastically enough to give that gift to their own children - even if it is somewhat
"uncool".
Enough gushing - but it certainly was a pleasure to have the quiz this week be about
stamps. Andy Hoh
*****
You must have WAY too much time on your hands to be figuring out how much that
would be in carpet. I LOVE it! It makes one think about things, eh? But, in addition to
carpeting your house in that, what sort of furniture could you put with that? It’s not
like you could just toss anything in that room, it would have to be fairly neutral color,
those Skillings were colorful. In addition, if you use such a small print on things, it
may have a tendency to ‘dance’ in front of your eyes, like small wallpaper print – it
vibrates. Imagine a vibrating floor if you get up feeling poorly, it may not be good.
You may want to consider something more durable, too; I’m not sure that you’d get
much wear out of those Skillings, and they’d show the traffic patterns in the room very
quickly. Kelly Fetherlin
*****
With my luck, I'd find out about the value of a stamp, right after I used it to mail a card
to someone else...lol... Mary Fraser
*****
Yes, that would be an odd sight -- zillionaires paying for luxuries with Green Stamp
books. By the way, just knowing what Green Stamp books are shows our age!
Anyone under 30 has no idea what they are. Like when my mom bought a new "retro"
rotary-dial phone and my 10 and 12 year old niece and nephew had no idea now to dial
a number with it, but could easily text message on their cell phones! Andy Wold
*****
There are no other samples known, making it the rarest stamp known to exist." from:
http://collectibles.savvy-cafe.com/. I was a stamp collector myself at one time (I still
have the stamps, but haven't done anything with them in at least a decade). I have two
stamps that are pretty rare (not compared to this one obviously). Brian Kemp
*****
After finding out about this valuable stamp, I guess that I should not have given up
collecting stamps when I was in grammar school. But I did not live in Sweden so I
guess that it is just as well. Robert E. McKenna
*****
If there were 65 Tre Skilling stamps, then they wouldn’t be worth what this one is
worth which I guess is the whole point. It is mind boggling that this stamp has
survived all it has. I was so pleased with myself as I recognized it was a Swedish
stamp at first glance. That is because I had been working on Swedish Emigration
records through Ancestry all week. It was probably one of the easiest quizzes for me
yet. I think I ought to drag out the family stamp albums and take a look. Yuk! I
would rather look at the family photo albums. If I was escaping the war or a disaster, I
guess saving a stamp would be about the easiest thing to save. How do I know which
stamp to save? Judy Pfaff
*****
The theory behind those extravagent expenses totally escapes me. At what point have
they reached the top price? I, too, sometimes think about the items that have survived
and am amazed. I marvel at how much has been lost as well, think of how many 1, 5,
and 10 dollar bills are blowing around or lost under normal dust. Gina Hudson
*****
I think I should go back out to one of my kitchen cupboards and pull out the 8 or so
books of green stamps I never exchanged for loot! Perhaps there’s a yellow green
stamp among them???????? (Hah!) Cari Thomas
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Two Pence Mauritius Post Office and not Post Paid Read more...
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Only 100 copies of the Inverted Jenny were ever found, making this error one of the
most prized in all philately. Since the stamp was printed in two colors, each sheet had
to be fed through the printing press twice, an error-prone process that had resulted in
invert errors in stamps of 1869 and 1901, and at least three misprinted sheets were
found during the production process and were destroyed. It is believed that only one
misprinted sheet of 100 stamps got through unnoticed, and stamp collectors have spent
the ensuing years trying to find them all. An inverted Jenny was sold at a Robert A.
Siegel auction in November 2007 for US$977,500. Read more...
Purchase price of Tree Skilling Adjusted for inflation. Click on thumbnail to see larger image.
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