W.R.A.Co. 30 U.S.G

Hi, All…Here is an early W.R.A.Co. Krag round that has a very deep impressed circle on the primer, but no “W”, and, as deep as the circle is, (MUCH deeper than those normally seen with the “W” contained within) I don’t believe the “W” was worn off the bunter…Have any of you seen this on any other cartridges? This is a fairly early cartridge, circa 1895, with CNCS bullet and serifed headstamp.