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 a lot of 
diacritic marks and therefore was difficult to read, write and typeset at that time.
See also: Africa Alphabet
-  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
 
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