Oxford's union catalogue for the holdings of university, departmental and college libraries.
Use keyword searching (auction house or dealer name, word/s in catalogue title) plus year.
Example: christie paintings 1996
With the emergence of online auction house catalogues, the arrival of hard copy versions at the Sackler Library has greatly diminished. For more recent years, therefore (from ca. 2009 on), researchers may prefer to consult online resources first (see below).
To find more books illustrating artists' signatures select in subject from the drop-down menu and type artists' marks or monograms in the search box.