- Receipts for the original and subsequent sales going back to artwork’s creation,
naming the dates of purchase, price, seller
- Catalogues from exhibitions in which artwork had been included
naming dates of exhibition and locations of exhibitions and names of museums (exhibition venues)
- Literature citations for the artwork
books in which artwork is discussed and/or illustrated, especially catalogue raisonne citations
Corinne Cain of www.SavvyCollector.com