To say that this book was in rough shape, would be an understatement.  The entire book was brittle, with large and extensive pieces not only missing from the cover but the interiors as well.  The entire spine was so degraded, that each time the book was opened, more pieces came off and photographing the book was an exercise in careful handling.  Restoration began by numbering the folios.  There was no integrity to the interiors, so the rusted staples just broke away from the spine.  The cover and interiors were dry-cleaned to remove any surface dirt and the entire book was washed to remove as much of the acidity as possible and restore as much suppleness as possible.  In addition, the interiors were bleached.  Areas of loss on the cover and interiors were extensively leaf-cast and due to the brittleness of the paper additional infills and reinforcements were needed to hold everything together.  All infilled areas of the cover and interiors were then color-touched to recreate missing artwork and graphics.  The inside cover text that was damaged (and missing) was recreated as well.   The book was then refolded,  reassembled and pressed.