1960s Olivetti-Underwood 21
Up for sale is an awesome Olivetti-Underwood 21 which was made sometime in the 1960s following Olivetti and Underwood's merge. This machine was made in Barcelona, Spain. The 21 is rather large, particularly in its front-to-back depth. Although this machine may not be considered a true "portable" typewriter due to its size, it is truly an excellent machine to write with. Everything is fully functional right down to the bell, and it even comes with the original user manual and cleaning kit, and a typewriter parts diagram. Cosmetically, this typewriter is in beautiful shape with essentially nothing to complain about. The inside of the case is the only thing on this machine that shows any wear at all, which is still limited.
This typewriter uses universal ribbons which are sold on this site.
If you're in the market for a larger portable that's ready to be used heavily and reliably for years to come, then this is a great choice!