mhardy;
I'd like to add my agreement with Mike Priwer's opinion that the grips you found on Gunbroker are not correct. Besides the texture that Mike cites, you can see that the escutcheons are bright brass and the screw is brass. You can see in the "correct grips" photo that original grips would have been equipped with nickel-plated brass or steel escutcheons and a steel screw. Wait for an original pair.

Larry