Up for sale here is what I believe to be the best screwbell case on the market.  This is a David Thompson case in gray cordura with leather accents.  The matching clip-on mute case is included in this auction as well.  The case has a fiberglass core with lots of sturdy padding to protect your horn.  Every detail about the design and manufacture of these cases is smart and rugged.  This case is used, but barely, and is in excellent condition.  The only reason I am selling is because I sold the horn that was in this case, and yes, I bought another David Thompson case for my other horn- so I don't need two!  This case is a special order case that will accommodate the regular sized bells (Conn, Atkinson, Lawson, Alexander, etc.) as well as the taller detatchable bells that come on the Yamahas.  Pictured is my Conn 8D (not included) with my Atkinson bell, but this case also held a Yamaha 667V with no problems.  The velcro straps insure a snug and protective fit for most any horn.  Triples and custom Geyers with extremely open wraps may have trouble with fittment, otherwise this case will work for most any screwbell horn.  Buyer to pay $15 shipping and insurance.  Below is a description directly from the Thompson Edition website, and pictures of the actual case for sale.  Please feel free to email me any questions, and good luck!

Thompson Edition Horn Cases and Mute Bags

Our firm-sided horn cases are designed to offer the convenient portability of a gig bag while maintaining the high degree of protection of a traditional hard case. Our unique construction allows our cases to be lighter than most other models on the market, and yet offer considerably more substantial shock-absorbing material to protect your valuable instrument. All models are supplied with multiple straps which allow the case to be easily carried either over the shoulder or as a backpack. All cases are finished in heavy-duty cordura with noble black leather trim, and most models are available in black, burgundy, marine blue, or pewter gray exterior with charcoal gray or black interior. The extra thick, resilient padding adapts itself to fit and hold firmly and securely virtually any standard model of horn. All of our cases include an ample outside pocket for carrying music and slots for two mouthpieces. The cut-bell cases also include a detachable accessory pouch. Our cases are handcrafted in the European Union, and we stand behind their quality.

Also available separately are our cordura mute bags, which fit any straight mute including the long Rittich-style (Thompson, Lewis, TrumCor, Balu) mutes, and clip easily onto any of our cases, or most other manufacturers'.