byf Code
As above, with "byf" code stamped on toggle link. Year of manufacture, either 41 or 42, stamped on chamber. Model also made with black plastic and walnut grips. Many thousands produced, with one- to five-digit serial numbers—some with a letter suffix.
NIB$0000
Excellent$0000
Very Good$0000
Good$0000
Fair$0000
Poor$0000