Before beginning any conservation work, I have found that it is wise to ask people coming into the museum with problem pieces to weigh the sentimental/historical/monetary value of the pieces against the cost of a competent conservator. I agree with the advice given that you do not want to attempt major surgery with a wrench and pocket knife. On the other hand, if the same print can be acquired in primo condition at 1/10th the price of a conservator's efforts, well . . . _______________________________ Byron A. Johnson, Exec. Dir. The Tampa Bay History Center E-Mail: [log in to unmask] Mail: P.O. Box 948 Tampa, FL 33601-0948 Phone: (813) 228-0097 FAX: (813) 223-7021