Description: "Art researchers have always had difficulty identifying these initials and marks, but Castagno has made their jobs much easier." -- Zentralblatt fr Geologie und Palontologie "... a basic resource for this special art reference field." -- American Reference Books Annual "...essential to any art dealer, collector, and library or scholar." -- The Antiquer's Guide "The work is accurate....more up to date than H.H. Caplan's...and Radway Jackson's...and it contains a larger number of difficult signatures....recommended for larger museum and research libraries." -- Choice Reviews "...perhaps the most important signature directory ever published because it catalogues exactly those names that dealers, collectors, appraisers, and other experts have the most trouble deciphering." -- Antiques and Collectibles

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