Originally Posted by REPEATER
1st one is a 5 shot . measured out at .38 #39853 no letter???
2nd is a 5 shot .38 as well #9775 on the trigger guard and #C9774 under the grip
3rd one is a 5 shot .38 #M39633
the 4th I cant find any # or letters on. it's truly a mystery
1st is an antique black powder 2nd model made in 1895.
2nd is a smokeless powder Model 1900 made 1925
3rd is a black powder 2nd model made 1904.
4th: Harrington & Richardson didn't use letter prefixes.