Regarding the transfer of a local photography collection--if your donor is willing, you can have a contract drawn up (with the help of an attorney) where a certain percentage of the collection is transfered each year to the Museum. For example, each year 10% of the collection could transfer. Such an agreement is often very appealing to a donor as they can take a tax deduction over a long period of time. The contract could also include a provision for the entire collection to transfer should the donor pass away. Regarding valuation, I would recommend that you contact the director of your state archives for assistance. Photos often fall under the title of archives--a difficult thing to value. Good luck--sounds like a wonderful opportunity! John Handley San Francisco