In answer to the original questions: yes and yes.
Around 1500 made for the Cal. Highway Patrol Assoc. as a special commemorative aorund 1983-4. These have the CHP logo on the receiver and are worth less than the 300? or so unmarked overrun guns that are not marked with the logo.
If NIB, $700-800 is an excellent price for either, but especailly for an unmarked gun. There are Ruger #1 collectors out there looking for these, but even some #1 fans don't see the reason for their existence.
I've had a lot of careful fun with mine over the years and it's still ANIB.