Montblanc 149 + 146 Piston Seals Options:Piston Seal with O-Ring New old stock with chalk

New old stock with chalk mark

descriptions and values

FOUNTAIN PEN CAP FOR MONTBLANC 146 IN BLACK

unscrew the blind cap enough to fit the tool's prongs on top of the slots in the filling unit

Montblanc 149 + 146 Piston Seals Options:Piston Seal with O-Ring New old stock with chalkThese piston seals will fit recent pens by sliding them onto the piston shaft, although ultrasonic cleaning of the original parts and a little heat and patience are required to get things apart and intact. Available with or without a rubber O ring at the top. Note: The seals without the o ring have dimensions of 9. 1 9. 15 mm at the largest diameter. These can be too small for some year's models, so please measure the seal you're intending to replace