LYDIAN (TYPEFACE)

'Lydian' is a typeface designed by Warren Chappell for American Type Founders in 1938. While the stressed letter designs (most notably in the rounded capitals C, G, O, and Q) suggest a calligraphic style, this is considered a sans-serif font. It is available in bold, italic, and condensed, as well as a Cursive variant. The original hot metal font included an alternate capital A with a cross bar and the original italic used old-style figures for numerals.
It is used by the International Baccalaureate Organization in their document section headings.
A U.S. design patent was applied for on 11 January 1939 and was granted (#116,996) on 3 October 1939.