Gand (Gent), Léonard Hebbelynck, 1868, in-8°, 25x19 cm, folding frontispiece (col. and gilt), 86 pp, 1 original photo illustration, half leather over marbled boards, gilt lettered spine, marbled endpapers, speckled edges. (leather discoloured). Text in French. Texte en français. Rare study on the frescos, or mural paintings in the Notre Dame church at the '' Zavel '' in Brussels. With an early original photograph illustration.