Conn Bb Euphonium EP501 compensated EP501

Bb Euphonium EP501 compensated EP501, CG Conn Brass. Compensated construction. bore .591 inch / .661 inch = 15.0mm / 16.8mm. brass bell ⌀. 11.8'' = 300mm. gold brass leadpipe. nickel silver outer slides. 4 valves (3 top, 1 side action). stainless steel valves. finish: clear varnish. original VINCENT BACH 6 1/2AL mouthpiece. lightweight case with backpack straps. . .