I have a revolver I don't know much about if someone could help. on the side it says 32 long serial number 55xxx. it has patent dates on the top of the barrel the most recent date is 1903
1) Is it a S&W revolver?
2) Is it a modern swing out cylinder or top break?
3) If a top break, is it a double or single action and hammer or hammerless?
4) How many rounds does it hold?