I came across a PWA 5028 extension. It is a half inch female, that transitions to 3/8" male drive. Marked only PWA 5028. I think it is Plomb. And WWII since it appears to be bare metal, or possibly cad plated. In great shape, and no rust.
Would like to trade for Plomb tools, specifically 9/32" stuff that may or may not be WF series. But would consider other Plomb ratchets or extensions or sockets.
It does not appear on your list. Do you think it is of Plomb manufacture?
I do have some PWA sockets, just have to find them.