Bona Allen was bought by Tandy, which already owned Radio Shack, Tex-Tan and Schoellkoph Saddlery in Dallas, in the late 60's. The top number is the model number, the next four numbers are the month and year made 1276, December 1976, and the last numbers are the serial numbers. Some of Bona Allen also had Jumbo brand on them, a Schoellkoph logo.