This is a museum quality reproduction of the US Model 1917 Pistol Lanyard issued for the M1911 Colt Auto Pistol and M1917 Revolvers.  This lanyard was developed because the M1905 lanyard, designed to fit earlier revolvers, did not fit the M1911 pistol well (some think this is the reason for the lanyard loop on early magazines).  It was issued from 1917 through WWII, although supplemented later by issue of the M1942 lanyard.  The M1917 lanyard was issued for both the M1911 pistol and the M1917 revolvers.  This reproduction DOES NOT have any markings.