Originally Posted by rednichols

We (I was their chief of design 1970-90) added the strap in the mid-70s. We added straps to all holsters eventually, the price of being a big products liability target. Yours is recent enough (indicated by the lack of a second row of stitching for the spring, and the harness attachment) that it has the cutout for the mag button on your 1911; so all good if your spring still has its 'pop' :-).