Somebody else will hopefully give you the correct answer, but it is a Bear Kodiak, and it would likely be a model from whatever year he shot his Dall Sheep. He shot his Stone Sheep in 1957, and my best guess for the Dall would be 1958 (a Little Delta hunt?). I don't have access to any documents/books right now, but this should serve as a temporary answer until someone verifies the correct year. The bow is definately a Bear Kodiak though.