I've only got one, a -2 from I've been told, 1966.
It has the target hammer, trigger, trigger stop, and diamond target grips. S/N K679203
I had watched it for several days on a local "gun for sale" board as the price dropped from $500.00 to $400.00, $25.00 at a time. I couldn't believe no one else bought it. The diamond targets are pretty pricey themselves I think.