Nikon 50mm f2 Nikkor-H Auto (pre-AI converted) iso_250 it is not fully interchangeable

it is not fully interchangeable with the intended N-F adapter (different extension)

This prism is in decent cosmetic condition

and a piece of IR filter is taped to the front of the lens: looks a bit dodgy

The Nikon TC-20E III is an autofocus teleconverter designed for select Nikon AF-S telephoto lenses (here's Nikon's compatibility list)

Nikon 50mm f2 Nikkor-H Auto (pre-AI converted) iso_250 it is not fully interchangeableThe Nikon 50mm f2 Nikkor H Auto is a compact standard lens for Nikon F mount cameras. Optics are free of hazing or fungus, but there is internal dust. This pre AI lens has been converted to AI (with a section of the original aperture ring machined away) so it can be used on many modern Nikon F mount cameras.