the top bow in my pic is a 1949 Grizzly, the first production bow made by Bear Archery, prior to that each bow was made custom. Below the '49 Griz is a 1950 Kodiak K-6. In desending order after that is 1951 K-6, 1952 K-4, 1953 K-4 (note glass color). Of course in 1954 Bear introduced the Kodiak II or also called the "Compass Kodiak" for obvoius reasons. Probably more information than you wanted to know!