This is the film rewind lever, and shaft (not pictured, sorry) from an ME Super.
Condition: The knob, lever and crank are in very good condition, with minimal or no wearing to the black anodising. The chromed shaft is near-perfect. Please see the images for reference.
A note on Source: We’re not in the habit of stripping perfectly serviceable cameras for parts. This ME Super had heavily corroded chassis and mirror box and badly scratched man panels, so it’s been stripped for a few parts and will be binned in the most part.