The range where I mostly shoot and which handles out-of-state ship-ins for me has a Model 19-4 California Highway Patrol Commemorative, which I think came out in 1978 or 1979. It is labeled "unfired" and the box is a nice wooden presentation case -- original, I presume. A little gilt may have fallen from one point of the CHP star on the sideplate, but the rest of the gun looks completely new.
They are asking $750. It's not my kind of thing, but if anybody here is interested, PM me and I'll give you their contact info.