Always depends on condition! First ones made had round barrels(1887), later ones had flats. Some had a loading gate, most did not. The loading gate model cost extra. I've paid anywhere from $50 for one in fair condition to $250 for one in excellent condition still in the box.
Caliber should be on the barrel. SN's were not required until 1968
No such weapon made by S&W
10-100 USD or so
A large revolver
Probably late 1880's
I did my research on the gun itself and it is .32 caliber. Its worth about $1,750. for more info e-mail me at t7k7t7@aol.com
Yes, you can shoot .38 caliber ammunition in a .357 revolver because the .357 revolver is designed to also shoot .38 caliber ammunition.
An Iver Johnson revolver in 32 caliber was used to assassinate President McKinley. 2 shots were fired, one hitting his breastbone did not penetrate, the second shot entered lower and damaged a number or organs. The bullet was not removed.
Blue Book of Gun Values
No way to answer without detailed information on all markings and features.
Anywhere from $10-$200, depending on condition, model, etc.
1910