Some 1/2sq drive sockets I picked up over the summer, but don't recall posting. Took pics to show the date codes, mostly.
First image shows 1927, 1929, 1929, 1927, 1930. The 9/16 (1929) is a 12pt, but the rest are 6pt.
Third image show 1929 & 1930. Thought it was interesting the the different knurl patterns were contemporaneous. The other images of these same sockets show the part numbers. The No416 is an 8pt. The SW250 is interesting for having "PAT" with no date or number, and a repeat large "D" stamped on it.
Seventh image shows 1945 (G) in plain steel, 1945 (G) in chrome, 1947 (notice the change in knurl after 1943), 1937, 1944 (E) is a 1" socket.