Collection of ten rotary knobs intended for use on the MDC (Main Display Console) of the Apollo Command Module MDC, eight of which measure 2″ in diameter, with the remaining two knobs measuring .5 x 2.25. Bottom of four knobs feature inspection stamps and part numbers, "LBW3569, ME 195 0012 0003, P/N 6525," "LBV3414, ME 195 0012 0003, P/N 6525," "NC 209-68, V36-761535," and "V36-761535, 253-71 NC.," with two knobs dated "16 May '68" and "8 Aug '68." In overall fine condition.
