Help Identifying year of Breaker bar

[Detroit Diesel Man]

I have a 3/8 Drive Snap-On breaker bar..the head is offset from the body and their is a 3/8 square drive opening in the end of the handle...I'll try and get pics up..but the number on the handle is F-10-HG I bought it years ago for
.50 at a bgarge sale I still use it now and then but am curious what year it is. didnt see it listed on any list of date codes..Thanks.

DDM

[billymade]

Here is one listed that has a close part# that is circa 1940:
http://alloy-artifacts.com/snapon-bluepoint-tools-p2.html

[Detroit Diesel Man]

Cool..that F-10-B looks almost identical to the one I have but mine doesnt have the hole in the handle...


DDM