Having previously pooh-poohed the Olivetti logo of the 50s, 60s and 70s as being neither pictorial nor consistently applied, the celebration of Giovanni Pintori's work by ninonbooks prompted a revisit. I don't know if it was drawn by him but my conclusion: it is a glorious logo.
Have a play with it. Right click to download your very own hi-res bitmap here.
I don't have access to the fonts used in the advertising, though Bodoni italic is a good start for words like Lettera etc. The namestyle on Sottsass'es Valentine is appropriately, for a red plastic typewriter with orange bobbin-knobs, set in Braggadocio. On contemporary machines, so's Adler. And cruelly mis-applied in Boston.