I received this unusual case with my Conn C Soprano sax. It is made of a cylinder of thick cowhide, lined with a thick felt material. It looks like it used to have a handle and the top of the case closes with a small buckle. The sax fits neatly inside. Does anyone have any information on this type of case? Was it meant for a sax? Was it original to the sax (1921 model)? Who made it?