Welcome Larry... I cannot help you with this, but there are a few guys over on RimfireCentral.com who can. Just go over there and ask this in the marlin section, and someone will know the answer. There ws probably a break in the years they were made as to which ones had the gold trigger and which ones did not. I know my Dad had an old 1957 39A Golden, that had a blued trigger.I have been reading the post about the Marlin 39M, I have two Marlin 39M's that i purchased in 1981 and 1982, both my rifles do not have a golden trigger, what is the difference in the one's with the gold trigger and one without, both these guns were purchased brand new from gun store in PA.