Standard Alphabet by Lepsius

Alphabet developed by Carl Richard Lepsius to write African Languages. Published 1855 and in a revised edition (with many more languages added) in 1863. It was comprehensive but it wasn't used much as it contains alot of diacritic marks and therefore was difficult to read, write and typeset at that time.

Reference

• Lepsius C R 1981 Standard Alphabet for Reducing Unwritten Languages and Foreign Graphic Systems to a Uniform Orthography in European Letters, , 2nd rev. edn. John Benjamins, Amsterdam