Royal Signet Typewriter Top Cover Keeper Bushing

The Royal Signet typewriter made in Japan in the 1960s - 1970s used a rubber bushing keeper to secure the top cover. The rubber used on many deteriorates with age and often crumbles to dust. This is a functional replacement intended to be printed in TPU (Ninjaflex, Semiflex, etc.)

I printed in Ninjatek Semiflex @ 220C/60C bed and achieved very workable results. They are a snug fit but snapped into the hole. The cover fits very snugly.

This was designed from scratch -- I didn't have an inta