The Hammond Typewriter Company released the Hammond Multiplex in 1913. The company was based in New York, and they used a patented type-shuttle and hammer-type mechanism for the typewriter. It used a curved, metal wheel that had each letter in it that spun when youn typed a letter to type the correct character. Also, if you flipped the mechanism around, you could use "International mode" with international characters.
Source: Elephant's Trunk Flea Market
Corona Portable Typewriter
This is a typewriter released by Corona around 1912. It is considered a portable model, with the top part being able to fold over the keyboard for easy portability. It was an extremely popular model, being discontinued in 1941.
Donation: Alan & Jeanie Sacks
The Royal Varsity was a portable typewriter released in 1938. It has rubber "Munsen Speed Keys" attached.
Source: Estate Sale