This sale is for one really excellent condition Mamiya RZ67 / RB67 / 645 80mm push-on front lens cap, suitable for use with all RB67 and RZ67 lenses except a few very large ones like the 75mm shift.
This Mamiya cap is in great condition with only normal very minor signs of use. It has the Mamiya name in chrome – this is an original version RB67 cap, but no locking clips to break on this one! Fits all 77mm filter size lenses. If you want a few caps (or other sizes), just ask.