GUIDE TO RESOURCES THAT IDENTIFY ARTISTS' SIGNATURES

Caplan, H.H.

Classified Directory of Artists Signatures Symbols and Monograms. Detroit: Gale, 1976.

Castagno, John

European Artists: Signatures and Monograpms, 1800- 1990. Metuchen: Scarecrow, 1990.

Castagno, John

American Artists: Signatures and Monograms, 1800-1989. Metuchen: Scarecrow, 1990.

Castagno, John

Artists' Monograms and Indiscernible Signatures: An International Directory 1800-1991. Metuchen: Scarecrow, 1991.

Nagler, G.K.

Die Monogrammisten. Holland: DeGraaf, 1966.

COLLECTORS' MARKS:

Lugt, Frits

Les marques de collections de dessins et d'estampes.... Amsterdam: LaHeye, 1956. 

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