(31) Before / After Cleaning treatment to remove the foxing on this engraving; the engraving has regained it's original sharpness and clarity.

(32) Before / After Treatment to remove the particularly stubborn stains from the book before restoration and rebinding. The treatment consists of several baths which are not detrimental to the paper.

(33) Before / After Removal of damp stains which is done without affecting the structure of the paper.