Or so the story goes. No markings no serial number, nothing, hence sterilized. Not a museum piece, it belongs to a private collector.

Here's the story, no idea if it's true.

This is an integrally silenced Ruger MKI made for the CIA in 1950 and used into the 1970s roughly. The gun was completely sterilized, it has no markings whatsoever. It had five documented deployments (hits) on its record, allegedly. It was retired because it was too loud, then the rest were recorded to be quieter and this one was left in its original state. This just had washers and spacers inside, overly basic considering silencer technology back then was a lot better than that.