Hi Tom,

I wouldn't mind a confirmation myself. Note that the combined length of the handle, spacers and hilt should be roughly 4 1/4 - 4 1/2". Factoring that as an aspect ratio, the blade comes in at ~ 5". The shop quit making Model 3's with a 5 1/2" blade when a 5" Model 7 was offered in 1948. Model 3's were only available in 6 & 7" blade lengths from 1948 through 1966. In 1967, a 5" Model 3 became available, well after the Heiser and pinning periods.

Best,

Ron