The phrase "typewriter keys" refers to the buttons or letters on a typewriter that you press to create written words on paper.
Sentences with «typewriter keys»
The newsroom set is alive, bustling with energy and accented with the musical sound of typewriter keys eternally tapping away. (slashfilm.com)
Christa, is the local designer behind Pistoli, a line of accessories made from vintage typewriter keys. (stylemba.com)
(Significantly, the first part of the video essentially begins with two technological sounds / images / rhythms: film turning on an editing table and Godard tapping typewriter keys — the first legato, the second staccato.) (chicagoreader.com)