Top Valve Cap, Yamaha Sousaphone and Tuba, Brass

Yamaha, sousaphone & tuba OEM brass lacquer top valve cap, 1 each.
YBB-321(2)
YBB-621
YBB-631
YBB-632
YCB-621
YCB-822
YEB-321
YEB-381
YEB-632
YFB-621
YFB-822
YSH-301(2)
YSH-301(3)
YSH-411