OV-10IB Sporting Super Rare 500W Red FP PC

Here's my OV-10IB mounted in my bedroom with my super rare Fisher Pierce 500W "Photofeedback" photocell from Joe Maurath. This old guy did his time in service and is now in retirement as a shorting cap for indoor use (no longer works and has cracks in the brittle cover).

Back in the early 1960s, EUA installed OV-10IBs in good sized numbers, all with these red photocells atop them. Although this OV-10IB is technically a NEES light, there was no difference between the two as far as I know, since in the early 60s NEES was buying 120V just like EUA (which always bought 120V I think). EUA was a religious Fisher Pierce user but NEES flip-flopped between FP and Ripley (and maybe others) so to make this a "NEES light" I'd just need to put in my tall blue Fisher Pierce photocell, which actually still works, but has cracks in its brittle cover so it can only be used indoors and isn't that sensitive at all anyway. It works though, which is still saying something given the PC is over 40 years old.