Picked this up last week, did a little research and found they do have some what of a history but depending on who you ask... It may very from the one thing to another. I do know for a fact that they were made from 1985-87 and the one I have does have the 150 year Anniversary emblem on the grip so it was made it 86. This is a Peacekeeper, not to be confused with the Peacemaker. I did fire a few rounds through it this weekend and it is very accurate, I have a 1911 which does not seem to be so it did honestly impress me a bit. Anybody know any more info on these, not a lot of info out there and upon a serial number search on the Colt website it pulls up everything but the Peacekeeper.