I'm trying to determine when the caliber roll marking on the left side of the barrel was
started, by serial number. From my guns, which are listed below, it starts somewhere
between 3865 and 10471 . Somewhere in this range, the caliber roll marking is
.38 S&W SPECIAL CTG . Secondarily, I am looking to see if there are any 1899's that
have the dual-caliber marking. None of mine do - all of my 1902's have the dual marking.

The information I want is only the serial number and the caliber roll marking on the left
side of the barrel. I'll add them to my list, keeping it updated here. No names will be
attached. You can either respond by posting the information in this thread, or send me a PM, or an email ( [email protected]).

If I can gather enough data, I suspect that there will be a region where some guns have
caliber roll markings, and others do not.

Here is my list, plus any others that are contributed, designated with an "*" after the serial number.

225 no caliber roll marking
1254 no caliber roll marking
1404 no caliber roll marking
1949 no caliber roll marking
3695 no caliber roll marking
3865 no caliber roll marking

10471 .38 S&W SPECIAL CTG
14048* .38 S&W SPECIAL CTG
14810 .38 S&W SPECIAL CTG
17085 .38 S&W SPECIAL CTG
18291 .38 S&W SPECIAL CTG
20114 .38 S&W SPECIAL CTG

Thanks for your help, Mike Priwer