Espy Sans is a bitmap font designed by Garrett Boge and Damon Clark of LetterPerfect Fonts for the Apple Computer user interface group in 1992.
The Espy family consists of Sans & Serif typefaces, each with Regular & Bold styles in discrete bitmap sizes of 8, 9, 10, 12 & 14 pt.
Espy Sans replaced Apple's previous use of Chicago and Geneva in Mac OS 7.5 released in 1995.
It was also used for the Newton PDA project and their eWorld online bulletin board service.
Before the release of the Charcoal font used for Mac OS 8 and 9, Espy Sans was a popular replacement system font for reskinnings of Mac OS 7.x, being included in system extensions such as Greg Landweber's Aaron extension.