Stain on paper

From: Soren Ibsen <*soren.ibsen<-a*> Date: Wednesday, September 10, 1997 · soren.ibsen<-a

Catherine Bonnett ask quiston about green spots on the paper in the
spine of a book, who have been rebound in the 1820's.

I think it could be copper-corrosion from the bookbinder's glue or
pastepot.

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                  Conservation DistList Instance 11:24
               Distributed: Thursday, September 11, 1997
                       Message Id: cdl-11-24-009
                                  ***