MARTIN GERLACH "Das Gewerbe Monogramm" (1881.).
100 , , , . . .
William Robert Tymms Matthew Dibby 'The art of illuminating as practised in Europe from the earliest times' (1866).
'Medieval Alphabets and Initials for Illuminators' by F. G. Delamotte. . 1886.
Owen Jones 'Alphabet' (1864). . .
Antonio Schiratti (1600-1615 .)
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