Time to get clickin’ and clackin’…

type ball IBM Selectric Type Ball
via Letterology

“…an IBM Selectric type ball, or more commonly known as an “IBM golf ball”, so named as it resembles one in size. The type ball was originally engineered for IBM’s Selectric Typewriter in the early 1960s, and offered an interchangeable typewriter font which rotated and tilted into position before striking each letter onto the page. The first monospaced type ball fonts came in a variety of styles and two sizes: 10 or 12 characters-per-inch…”

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