New member here and I need some help please. I am the proud owner of a S&W model 3 1st issue in 44 American caliber. All the internals are mint except for the cylinder stop. The body of the stop is there, but the arm is broken off. Can anyone recommend someone capable of repairing this part or for that matter supply a new (old) cylinder stop. Mine is the early style that bears on the hammer and not on the trigger. I am somewhat handy and could possibly do this myself if I had one to copy. I don`t have a scale drawing of the part and do not know how long the "leg" should be nor the shape of the "tail". Suggestions would be appreciated as I want to shoot this gun. Black powder only, mind you. Mine is serial numbered 21__. I have a S&W letter stating it was shipped in March of 1872 to a dealer in N.Y.C. (and then on to Wyatt Earp I`m sure)!!!!Thanks, Wormey
Welcome, Womey.
Let me take a long shot guess. Shipped to M.W. Robinson in NYC ? LOL.
If you post a few pix we can better help you. Many times what you "think" is wrong may only be part of it, or, something completely different. Beside that we charge a tariff of $1.00 payable by the originator of the thread, to every member of the Antique section, if that originator of the thread does not include pictures.

I'll let you slide on my $1.00 but you have it out with the other 500 guys here ... LOL !
Please post sharp focused, properly lighted pictures of both sizes (full length) of the revolver with the hammer down as if just fired (all the way down, not on the 1st notch to open it).
Next pix of the face of the cylinder and flash plate (close ups).
Things that usually mean trouble on Model 3s, across the board.
1. boogered screws and a poor side plate fit.
2. Loose at hinge / clasp when locked up (worn)
3. Poorly stored, rusted, improperly refinished or improper Rube Goldberg type repairs.
More times than not, these are found after being home-gunsmithed (a nice way to say hacked) wherein crude measures were undertaken to attempt a repair.
I posted a few pages with diagrams of the 1st type and revised American nammer (before and to the 2nd model American) in another thread, UGLY AMERICAN , post # 43 see:
http://smith-wessonforum.com/s-w-antiques/497010-my-ugly-american.html
At one time the American was the cutting edge of technology. Within 20 years the .44 American caliber lost favor to the better .33 Russian (later named .44 S&W) but .44 A ammo could still be had up to and around WWI, perhaps a bit later but not past WWII.
These Americans had a long service life. They were kept and used until they couldn't be repaired any more. Very, VERY few were cherished as they had just become old junk. Those that have survived in mechanically sound condition are a treasure, I feel. Very few, especially after the time the .44 Russian ruled, the Americans were basically discarded. It was the collecting interest of returning veterans that sparked a major boom on gun collecting as we know it in post WWII America. Add to that the glut of surplus WWI and WWII firearms, it was a sport and hobby the the average man with middle income could afford.
Some of the sorry and sad killers of the Model 3s are, refiled hammer / sear (sear is on the back end of trigger on this modes). From new and in use, if the hammer / sear starts to slip off, it can me carefully "stoned" to resharpen it ... ONCE ! ... and ONLY ONCE, by someone who knew exactly what he was doing, after which it needs a new hammer (best if with matched trigger (sear) which are no longer available.
I have a Transition American SN 73xx that was refurbished by S&W in 1926 to which S&W fitted a New Model 3 latch (numbered correctly to the gun) instead of the exact circular shape type (with checkered round ends), American latch. I suppose it was the correct "revised" edition of the part as it is likely none of the American latches remained. The Transition is just gorgeous and correct in so much it was refurbished by S&W but it does not have "the" correct year production latch. The point of this is (the moral of the story) that as far back as the 1920s there were little / no remaining parts for the Americans as it seems very few were in demand to be repaired because of the 55 years of technology that had occurred since these were introduced in 1870.
A worn. or worse .... a filed hammer (at the sear engagement) will cause all sorts of problems. It seems the center of all the mechanics on a Model 3 is the hammer.
Next would be a worn or chipped hand, which is not too bad to have one made but it would be the years of being manipulted or used with the chipped hand that it now scars up the rotator gear in the center of the cylinder attached to and part of the extractor.
See what you can do with the pix that we can all take a look to decide what's really wrong with your M3 American.
Model 3s (to me and many others) are one of the finest revolvers S&W ever made, in my opinion, for the time they were produced. So popular and accurate that once production of the New Model #3 ended in 1898, guns were special ordered and shipped well into and likely past 1912.
Good luck.