I recently bought this old 38spc. It's a 38-44, called the heavy duty. It is an N frame chambered in 38 spc.

This gun was produced to use a high speed heavy bullet. These would shoot a 170-180 gr bullet at speeds way faster than 38 spc. Remington developed thier High Speed 38 load to shoot through car bodies. Rem. and S&W used this frame to develope the 357. 

This old gun survived an attack by Bubba on the finish but it didn't hurt how it shoots.

HDHIC