I found a Realistic r25ed cartridge at a local thrift store on a Realistic Lab 55 turntable. I bought the turntable for the cartridge since it was only $6.98. So it wasn't a big lost if it's worthless. It looks like a Shure cartridge but wasn't sure if it was. Is it worth buying a stylus for? And if it is which one. *edit: After taking a few picture and zooming in, I noticed it says Shure right on the front of the stylus.