Yep, that's just what the sidearms were for tankers back then. I ran the arms room for my company and they were all that worn.
When I left AD and entered the Reserves, I took control of a unit that had MINT M1911 Colts and High Standard .22 target pistols. MINT.
One of my tasks was to bring them to the depot for destruction and certify that the destruction was complete. Ugh.
It was one of the more unsavory jobs I had as a Company Commander.