s/n 795000 to end of production, ribbed back (crossed reinforcing ribs) with wide rings around screw holes, mold number in center of cross with numbers 1 thru 24. These are the standard Colt manufactured grips for the Colt 1911A1. The pictures are representative only, not the actual grip set you will receive. Because these are all used, they may have numbers painted on them or other markings. These usually are removed easily with oil and a soft bristle brush.