It was found, with three others similarly inscribed, built into the walls of a dwelling-house in the county Kerry, to which it is believed they had been removed from the interior of a neighbouring rath.

The bilingual Ogham was found at St.
Dogmael's, near Cardiganshire.

The Ogham alphabet is called _beithluisnion_, from the name of its two first letters, _beith_, which signifies a birch-tree, and _luis_, the mountain-ash.

If this kind of writing had been introduced in Christian times, it is quite unlikely that such names would have been chosen.

They are manifestly referable to a time when a tree had some significance beyond the useful or the ornamental.