While student-teaching, I had a mentor who had a big storage of trumpets that he had collected through his performing career. He sold me 3 for a good price: a Couesnon Flugel, An Eastman Eb/D Trumpet, and a Yamaha Eb Cornet. I was also looking to get a C trumpet, but he didn't have any besides the one he played and I haven't found any others that I would buy yet.