Rick, I have seen several and own one or two that meets your description. I even have a 1911 fast draw rig that fits into the same puzzle and I think I posted pictures of this at one time? I personally do not know what these were about but do find their construction to be very good over all and on par with the best from that time frame. Why no makers marks is a total puzzle also. I have wondered if a young JB, EH or other young guy just starting out was doing some of these and leaving the tracking info off as litigation protection??? I will also note that most were done in black. Good luck and let me know if you ever learn anything else on these mystery rigs.