Help dating 3" Snap-on F-2 Extension

[3jakes]

I've been looking at the Collecting Snap-on site, but I am too thick to understand what I read I guess.
This F-2 has a large underline logo on the shaft with no markings on the female end.
On the reverse, next to the 3 owner grind marks, is another mark that could be wear & tear or.......?
thanks.

 

[thehorse13]

1935.

That is the down swoop "5" mark that is lightly struck or worn away.

 

[3jakes]

Cool Thanks.
I have a copy of the logo chart, but the top horizontal on my tool looked tilted so I didn't see it till you pointed it out.
I guess the stamp was done by hand so the 5 is not perfectly aligned with the shaft of the extension.