40 sec. or s&c

  1. Hope this isnt what it looks like!

    Hope this isn't what it looks like! I was going through some old MD'ing finds today and ran across this old item. It appears to screw into something at one end and the other looks like the back of a center fire cartridge. Embossed on the shaft is either 40 sec. or 40 s & c. It looks to me...