RugerSociety.com

There's a milestone serial number 10/22 coming up in a few days at rockisland auction, serial number 231-00000. At one time Ruger held all of these unique serial numbers back and this is probably one of those. Nowadays I believe Ruger just ships them out.
https://www.rockislandauction.com/detai ... ire-rifles

Chet15