Here’s an odd piece I saw on Ebay that jumped out at me.
A universal T handle wrench. 1/2”, #
P12. Looks like maybe a 1929 date stamp.
18-1/2” overall length with an 8” handle. I don’t see it in the available catalogs, only shorter versions with different part numbers.
The old round O LA stuff is my favorite. A single 1/2” drive 5/8” universal socket was a huge surprise in the Craftsman =V= set I grabbed last weekend.



Different length and part number than seen here in the 1929 catalog.

Socket
DU10


1928 stamp

Pic from 1928 catalog, and from 1931 Catalog showing part number transition.