Enefenar,

As best as I can ascertain,given it is chambered for a 38 S&W Cartridge,you should have an Early 2nd Model 38 Double-Action Top-Break!! Also,unless there is something extraordinary with the Barrel Length,Scarce Grips or being Factory Engraved,I think you'd be best to go back to talk to the owner of the gun shop & see what he would be willing to offer you!! Although we still need to see some photos just to verify what it is in case you missed something in your Description!!

Hope This Helps!!

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Masterpiece