http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
biographical and critical dictionary of painters, engravers, sculptors and architects, from ancient to modern times
with the monograms, ciphers, and marks used by distinguished artists to certify their works
Microfilm. Ann Arbor, Mich., Xerox University Microfilms, 1974. 1 reel. 35 mm. (American Culture Series, reel 598.9)