DE RIDDER, A., Collection de Clerq, sale catalogues, Volumes III (part 2)-VI, VII (parts 1 and 2) and Index, Paris, Ernest Leroux, 1905-1912. Folio, (345 x 270mm.). Half title, titles in red and black, numerous photographic plates, few with tissue guards. Uniformly bound in modern cloth, brown morocco lettering label (7)