This sale is for a really excellent condition Mamiya No. 3 80mm push-fit Lens Hood, designed and optimised for use with the RB67 and RZ67 100-200mm f5.2 zoom lenses, and also usable other similar lenses having a 77mm filter size.
This lens hood is in great condition with only normal very minor signs of use. A very rare item. Also perfect for lenses such as the 150mm, 180mm or 250mm if you have a dented lens rim that will not accept a screw-in hood.