The pistols are expected to be in all kinds of condition, from practically unfired, to unserviceable and useful for parts only. If any Singers show up, I expect them to go straight to auction. The CMP has always been generous on their grading and prices have been consistently 15-25% below market.
During my service I saw a few 1911’s made by Remington-Rand and I swear I recall one made by IBM.
Though that’s 40+ years ago and the mind could be playing tricks on me.