Up for Buy it Now auction is a Conn model 16E mellophonium, serial M60882. Comes with Eb slide, bit for French Horn mouthpiece, and CORRECT CONN 16 E mouthpiece--very hard to find. If you have only used these with horn mouthpieces, you will be amazed at the improvement in tone. All valves and slides work well. Repaired dents in bell but no major dents otherwise, some lacquer wear, leadpipe is straight. Originally trade-ins from ISU, still carry their inventory numbers. Solid original case. Have 2 up for auction, if you are only planning to purchase one, this is, cosmetically, the very slightly nicer of the two. Please notice my other marching band items up for sale. Email any questions. Shipping in the US lower 48 is flat $29.50, others actual. Can also be picked up in Bloomington, IL or I might be able to help with delivery, email me. Accept money order or Paypal. Thanks.