Chey 1 SIL Manuscript L is a free monospaced serif by the Summer Institute of Linguistics. Its tall, spare letters combine typewriter-like spacing with gently irregular curves, bracketed serifs, and noticeable shifts between fine and broad strokes.
Manuscript transcription is its most convincing use, where the measured spacing and bookish shapes suit linguistic publications and archival editions. It also fits museum graphics and historical exhibits, where the lettering can become part of a document-inspired label or period sign rather than serving as neutral text.