I just picked up this socket set yesterday, it seems to be an Indestro Super Quality set from 1938-1939. I have a lead on a ratchet, but I am missing the #2718 socket, it's a 3/8 drive 9/16 socket with an unusual narrow band knurling. All the socket will say is Chromiun Vandium, size, and part number, no makers name or forge marking.