WTB - McIntosh RCA shorting plugs for 1960s preamp / receiver

The listing

Looking for a few like the photos, short "nub" on the end. Photos are of one of my plugs from a 1967 MAC 1500 tube receiver. Notice the inside around the pin is copper. These were also used on MAC 1700, C-22, C-11, C-20, C-8, MX 110, MA-230 and other McIntosh products in the 1960s and 1970s. Let me know if you have a few spares to sell. Thank you. tags - mac1500, mac1900, mac1700, C22, C11, C20, MA230, C8 amplifier tuner, mr71, mr-71, c4, c-4, MX110, MX-110, ma 230, mr 71 pioneer, marantz, dynaco, bogen, harmon kardon, jbl, altec, eico. heathkit