Handled a very well worn 1873 today and couldnt find the caliber stamp anywhere on the barrel or on the brass piece in front of the trigger guard. Did a quick google and someone mentioned that the caliber stamp would wear off from lots of handling. The serial is very hard to read also. Any input? Regards, Jericho

Very early, first model 1873’s had no caliber stamp as the .44-40 was the only caliber available.

Thank you Pocono, very interesting thing to know. According to the serial number it was a very early 1882 production.

That's probably a very late 2nd model. I recall 2nd models without caliber markings too. I'm not sure if they all do

My 1873 was also made in 1882
Can't read anything except Model 1873.
Tag rifle came with said 44-40 so I just ordered a few boxes out of Idaho. Got my buddy Doc Rocket to shoot it and see if it was going to blow up. It didn't. BP of course.
Best of luck.