From Wikipedia
fol. 170r of the Book of Ballymote (AD 1390), part of the Auraicept na n-Éces, explaining the Ogham script.
the page shows varianst of Ogham, nrs. 43 to 77 of 92 in total, including shield ogham (nr. 73), wheel ogham (nr. 74), finn's window (nr. 75).
Lians
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