First off, welcome to the forum.

This appears to be a Military & Police (Model of 1905, 4th Change) that by its serial number would date to 1926-27. S&W did not make snubnosed revolvers until several years later, and the lack of an ejector rod locking lug on the underside of the barrel strongly suggests that this one was made up by the expedient of cutting down the barrel.

The one photo is not enough for me to be certain that the present nickeling is not original, but it doesn't look right. The stocks (grips) are definitely aftermarket items.

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SWCA #590
"Colligo ergo sum"