On Wed, 16 May 2012, Denis Jacquerye wrote: > U+1E00 and U+1E01 are also a mystery.
You can find "letter a with ring below" in the title "Grammar of the Pasto or language of the Afghans" by Ernest Trumpp, published 1873. http://www.google.co.uk/search?q=%22P%E1%B8%81%E1%B9%A3%CC%8Ct%C5%8D%22 I don't know whether there is a current romanization system that uses "letter a with ring below".
