Hi, I'm trying to help a patron who is working on a mathematical model. As I understand his quest, to demonstrate his model he is trying to find one or more examples of the sale history of a few individual works of art. We don't subscribe to any tools that might 'crunch' those numbers (if indeed such a tool exists). Short of extensive research, can any of you suggest sources that might present this information for one or more works of art? He wants to find examples of art that have changed hands over a span of a few centuries; contemporary art is not of interest. I hope my message is clear. If you need clarification please let me know. thanks all, Nina *~+~*^*~+~*^*~+~*^*~+~*^*~+~*^*~+~*^*~+~*^*~+~* Nina Stephenson, Art & Photography Librarian & Collection Development Manager Fine Arts Library MSC05 3020 1 University of New Mexico Albuquerque, NM 87131-0001 USA ph: (505) 277-0679 email: [log in to unmask] __________________________________________________________________ Mail submissions to [log in to unmask] For information about joining ARLIS/NA see: http://www.arlisna.org/join.html Send administrative matters (file requests, subscription requests, etc) to [log in to unmask] ARLIS-L Archives and subscription maintenance: http://lsv.uky.edu/archives/arlis-l.html Questions may be addressed to list owner (Judy Dyki) at: [log in to unmask]