Thanks for the responses. Kinda strange if it's a replacement. This one was a Vet. bring-back in holster. When I took it down it still had grease or cosmoline in it & the last round fired out of it left a headstamp impression with three Imperial markings. This leads me to believe it is untouched since WWI. So the sideplate was probably put on it during the war. Here's a Pic of holster Marked with a Crowned L. Does anyone know what this mark is.
JLS

