Stenoscript or Stenoscript ABC Shorthand is a shorthand system invented by Manuel Claude Avancena (1923–1987)[1] and first published in 1950. Encyclopædia Britannica, perhaps erroneously, claims it was based on a system published in London in 1607.[2] An unrelated project also called Stenoscript was written by George A.S. Oliver and published in London in 1934.[3]