Incised letters in stone, Gothic, [139], [140];

Classic Roman, [9], [14], [45];

(see also Granite, Inlaid, Marble, Sandstone, V-sunk and Stone-cut).

Ink, [201].

Inking-in lettering, [200], [202].

Inlaid lettering, Gothic, [141].

Interlacement of Script letters, [194].

Inter-relation of letters, [6], [135], [201].

Iorio, Adrian J., [107].

Irish letters, (see Anglo-Saxon).