Mamiya RB PRO-SD 120/220 6x7 POWER DRIVE FILM HOLDER / FILM BACK

  
Mamiya RB PRO-SD 120/220 power drive film holder (film back), fits all RB, RB PRO-S, RB PRO-SD bodies, item used in about 90% cosmetic condition and in 100% working condition, comes with dark slide! There's light oxidation in the battery cartridge compartment (see 11th pic), but the contacts are clean and battery emits to power up the film back, see last pic when pressed on the battery check button---lights up no problems!