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
TYPEWRITER OLIVETTI LETTERA 35 Red Perfectly Working - Etsy
An unconventional favorite of mine: the Olivetti Lettera 35 : r/typewriters
OLIVETTI LETTERA 35 Yellow Perfectly Working Vintage - Etsy
Antique typewriter olivetti LETTERA 35 | eBay
OLIVETTI LETTERA 35 Perfectly Working Vintage Typewriter - Etsy | Typewriter, Vintage typewriters, Working typewriter
File:Olivetti Lettera 35i Mario Bellini.jpg - Wikipedia