I am new to this forum. My wife inherited some sort of vintage woodwind single-reed mouthpiece that consists of a black hard rubber or plastic mouthpiece (1 1/2 inches long by 1/2 inch in diameter) and ligature connected to a thin pipe with a cork at the end. The pipe is approx. 5/16 inch in diameter at the end and has a wide round flange just above the cork. The overall length is 3 1/2 inches. I am trying to determine exactly what it is. At the risk of heresy on this forum , I am aware that there are single-reed mouthpieces available for traditional double reed instruments such as oboes and bassoons. Is that a possibility? It is much too small for a clarinet or soprano sax. I have scoured the web and even contacted several woodwind experts and a bagpipe specialist to no avail. There are absolutely no identifying marks or writing on this thing. If anyone knows what this is, please reply. Thanks a lot for your help, Dave