MARTIN INDIANA LARGE Bore .471" Trumpet 1960's, excellent condition, new corks, felts, valve alignment by Scott Sweeney of Sweeny Brass of Raleigh, North Carolina. Manufactured by MARTIN/RMC in the 1960'S. Very strong compression and all valves and pistons move freely. Sturdy case with hand and shoulder  strap. 7C mouthpiece included. Nickel outer and inner slides and brass valve casings. Al Hirt and Miles Davis played Martins' at one time. Sturdy construction. Serial # 132XXX. RMC stands for "Roundtable of Musical Craftsmen".