This cash register has two rows of keys, thirteen on the top and fourteen on the bottom. According to the National Cash Register Catalog for 1909 (http://www.brassregisters.com/ncr/cat/1909cat300class.htm), the key pattern corresponds to that of Models 346, 347, and 349. The catalog states that the Model 349 was made especially for bars and cafes, with a security feature to prevent an employee from stealing from the till. For this reason, the register in the picture was probably a Model 349, which sold for $125 in 1909. According to http://members.aol.com/ErgoFred/ncr/info/5ts.htm, the case is the dolphin design with an additional dolphin style marquee across the top reading "Amount Purchased" that was in use from 1902 through 1915. Since the Model 349 register probably appeared in the NCR catalog for several years around 1909, and it was likely used in the bar for a period of time, 1909 is only an approximate year for the picture. But this is a good starting point for further research.