I'm stepping up the grade of 99s I collect, as I have plenty of shooters, hunters and decent/ok ones. So, I'd like to get a better education about the different bluing that was used from say around 1900 to 1960. I thought they'd be the same, but have seen members eluding to it changing multiple times during this period. Do any of you know how many times the bluing changed? Pictures of the finishes on high condition guns would be great, but that seems like a lot of effort.
Thanks.
