CollectingSnapOn.com

Greetings from Tucson. I recently found in some of my dad's old tools a foot-long extention in what I think is 3/4 drive. It features the early Snap-On script and has only the number 8 on it. The shaft is square, there is no shoulder for the socket base to rest on (just a second pair of balls which do not compress), and the base fits on as a socket might, but is not detachable. Anyone have any ideas as to vintage or any information at all?
Thanks,
Greg

Its a 1928, would be 5/8 or 7/8 drive. The 7/8 drives are hard to find.

Thanks for the data. I measured. It is 5/8 drive.