New Old Stock (NOS) Rock-ola Microphone Kit 2130 for 447, 448, 449, 450, 451, 452, 453, 454, 457 & 458.  In original box.  I believe might be from 1975 as the newspaper used for packing in the box is the Chicago Sun Times from 1975.  Microphone cable wrapping has a break in one spot.  Some writing on box.