@oldschooleuph said in 1963 Martin Committee Medium Bore #2 Bb Trumpet:
Back when these were built, lacquer would certainly play different than raw brass, plating shouldn't have any effect (see the Schilke paper in the surviving loyalist material)...
Not so sure about this. Back in the vintage days of Committee's, the lead level in brass was quit high and then the Federal Government placed regulation to remove lead from brass alloy in 1953. So it may be as well the lead content of brass that had some impact on play quality of late 40's Committee.