Coelbren y Beirdd
The Coelbren y Beirdd (lit. 'Bards' lot') is a script created in the late eighteenth century by the Welsh antiquarian and literary forger Edward Williams, best known as Iolo Morganwg. The script, an alphabet compared to that of Ancient Greek by Welsh writer Jane Williams, consisted of forty letters – twenty base letters, and a further twenty devoted to long vowels and consonant mutations.