Went to an estate sale near my house to check out some old Porsche slot cars. They ended up being extremely expensive and passed on them. While poking around in the garage I found a new in box 1960’s rc plane engine. The lady at the counter didnt know what it was and let it go for $10.
There were some other very cool antique rc items. A pair of Schluter RC helis from the 70s and a couple Reed Transmitters from the 60s.