Spotted on maschinengeschrieben: 

26 Typewriters

Wow, 26 typewriters in 38 seconds. I saw this:

- Royal Sprite

- IBM Selectric I

- IBM Selectric II

- Olivetti Studio 44

- Olivetti Valentine

- Groma Modell N

- Olivetti Linea

- Olivetti Lettera 33

- Smith Corona Electra 110

- Hermes Baby

- Underwood

- Brother Charger II

- Montana Luxe

and many more….

Source: maschinengeschrieben.blogspot.de