I've just become the proud owner of a vintage CS which needs a new sac. I'm quite prepared and happy to do this work myself and while waiting for the arrival of my new pen I'm trying to amass the equippment which I'll need.
It would be a great help if someone could tell me which size of sac the Dinkie 550 takes so that I don't have to wait too long to write with my new baby.
Thanks in advance for any help or advice you can give about sac repair. I've been watching videos and lurking here to pick up tips, but anything you can offer by way of helpful words will be appreciated.