Prior to being numbered in 1957 what is now commonly refered to as "the model 10" was called the I905 Hand Ejector/Military and Police model. These were exceptionally fine revolvers and can be identified by a light, round tapered barrel with a 1/2-round front sight. They should however, not be used with +P ammunition.
Guns in the model 10 series after 10-1 are considered to be O.K. to use with a limited amount of +P ammunition, and will be found with either the original round "pencil" barrel or a heavy ribbed one. Both are appoximately equal, and its a case of picking which style you like best. Pencil barreled guns will be found with barrel lengths of 2, 3, 4, 5 and 6 inches. Heavy barreled ones came in lengths of 3 and 4 inches.
All Military & Police/model 10 revolvers are built on S&W's "K" frame, which is the second lightest - running from the lightest to heavest = J, K, L and N.
Any of the numbered models (10-whatever) would make a fine housegun.