We just found these vintage, new old stock, lens hood remnants in our stock room.  Just one of each available.  Just one of each is available so call first before coming in for these.
12537 hood for 21mm f2.8 Elmarit-M ASPH $230
12506 hood for 21mm f4 Elmarit-R $250
12528 entension hood for 100/2.8 macro-elmarit when 1:1 elpro is fitted  $120
14319 genuine 77mm lens cap $90
14089 lens cap for 90/2.8 Elmarit-R & 16/2.8 fisheye  $60
14037 reverse cap for E43 ver 1 & 2 50/1.4 lux hood  $125