I'm a little stumped on this one.
The local gun shop took it in and asked me to help. It appears to be a nickel plated HE .38 special cartridge, serial number 155292, pearl grips. It's a 4 screw gun. Upon close inspection the numbers match. It's functional but the finish is in rough shape.
Any help with a definitive model and suggested value would be appreciated. Thanks in advance.

Any help with a definitive model and suggested value would be appreciated. Thanks in advance.