I have just bought this Olivetti Lettera 35. From what I gather online I need a Gr 4 ribbon. I'm having a hard time finding those for sale. Will a gr 1
Olivetti Lettera 35, ribbon won't reverse when it reaches the end : r/typewriters
Royal Olivetti Lettera 25, 35 Black/Red Nylon Typewriter Ribbon
Olivetti Lettera 35L – Typewriter Review
Olivetti Lettera 35 Black and White Typewriter Ribbon - Free Shipping | eBay