George Studley was an early medal dealer. He was very active at American Legion, VFW, etc, conventions selling full-size and miniature medals to veterns. He published several small pricelists (collectable in their own right) showing what medals were available.
He wasn't greatly concerned about what the vet was authorized, he was in the business of selling medals and ribbons. As a result, you'll often see his miniature groups festooned with assorted British and French medals (Verdin, St. Mihiel, WWI Commemorative, etc). The second ribbon on this bar was generally referred to as the "Interallied Ribbon" and seemed to fill in where no other ribbon was available/authorized. Many of Studley's sales included this ribbon (which was properly used on several city medals from WWI).
Studley also had struck full-size medals, which he sold to veterans. He used government dies and had J.K. Davison, of Philadelphia, strike the pendants, which are substantially thicker than the official strikes.