The Fidelity Research Mk3F is near impossible to come by so you're not likely to see another listed any time soon. 

It took years to track this one down. This is one of the best-sounding vintage low-output moving coils ever made.

This is the rare Mk3F version of the FR-1 Mk3 which designates the rising frequency response of the cartridge is fixed so it's flat with more accuracy vs the original Mk3. 

The cantilver is broken so it needs retip. If you know a good retipper, you would be laughing and get the best souunding phono cartridge ever made at very reasonable cost.