Digital BW, The Print

In a juried process, I was selected to exhibit my (B&W) prints at a non-profit art center in VT 
(Northeast Kingdom.)  The prints are archival (carbon on cotton: MIS quadtone, HFA paper) 
and are professionally matted and (16x20) framed.  There will be 25 prints in the month-
long exhibit.

Since the center is in the midst of a fund raising effort, I'm contemplating donating the entire 
collection to their building fund, rather than trying to sell them.  Obviously, this raises the 
question of how to value the collection for tax purposes.

The materials cost to me of putting the collection together is about $150 per print, with no 
value given to my time or to the artistic value of the prints included.

So, if I am to claim a charitable deduction, how do I value the donation?  The center has 
agreed that $400 per print, or $10,000 for the collection, would be easily justified.

I'm looking for guidance from others who may have faced a similar situation.

TIA.

Harry