What I can find on this set is it's from around 1931.
I haven't seen one this complete in my searches.
Be a nice addition to a tool collectors cache.
1/2" x 19" speed wrench
Reversible ratchet
8" x 1/2" extension
Two piece breaker bar/t-handle wrench (3 combos)
Six point 1/2" drive sockets -- 1-1/4, 1-1/8, 1, 15/16, 7/8, 13/16, 25/32, 3/4, 23/32, 11/16, --, 19/32, 9/16, 17/32, 1/2, 7/16, 3/8, 11//32, and 5/16. (MISSING 5/8)
Four point 1/2" drive sockets -- 7/8, 11/16, 5/8, 9/16, 1/2, 7/16, 3/8, and 5/16.
Swivel + 5 other special pieces and 3 Valve grinding pieces that are used with one of the sockets pieces.