OK, take a look at this auction by Greg Martin:
http://www.gregmartinauctions.com/au...px?LotID=14604
The auction company says that it was made up by the San Antonio Armory, but I'd like to know how it can be determined that it is really a USGI item, lacking any documentation. I mean, it could easily be an 03A3 that someone modified in their basement.