Virotyp

Famously known for being able to use these small, light-weight typewriters in the trenches of WWI, and even on horseback, this little machine was easy to learn and is a strange sight to behold. The reason for being able to use this in such conditions was that it could be manipulated with one hand. Using the pinky finger, one could hold the machine, and then use their thumb and finger to rotate the dial for each letter. Then, when ready, could press down with the thumb to print the letter.