"Collectible", yes - although that's a pretty narrow market niche.
That set I posted above has been up
on ebay for well over a year now.
"Unique" - to a degree, yes. They were one of very few makers of 1/4" hex drive sets, and one of the only ones to mark the sockets "U.S.A."
(Meteor stamped "U.S.A." on them, but they didn't make a hex drive set.)
That odd socket is described as a "radio" socket in some early catalog advertisements. As noted, used for the round, knurled nuts found in early radio equipment.
This is the bottom view these only have USA and the socket size on them , No manufacturer logo. They appear to be 1/4 hex drive, I’ve never seen hex drive sockets before so I’m curious ?
this is top view 6pt except the last two pcs 1 has a 1/4” square drive in this end. The other pc I’m not sure if it’s been stripped out or if it has some sort of splines in it but it’s not a common splined socket either .
Side view can read USA on them
sizes 7/16 - 1/4” missing (1 socket )
these are the odd ones. 1) has a 1/4”hex in one end 1/4 square in the other 1) has 1/4” hex and either splines or has been stripped out in other end ?
