I have a Realistic turn table, model Lab 2200 and need a replacement stylus for the cartridge. The cartridge has a Realistic label with p/n 623. The cartridge mounting is P-type, that is four pins out the back with a screw hole through the pin block to secure to the tone arm. The stylus clips on to the cartridge.
Shure has a P-mount cartridge available: model M92E.