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Subject: Library of Congress Topics in Preservation Series (TOPS)

Library of Congress Topics in Preservation Series (TOPS)

From: Mary Oey <moey<-at->
Date: Monday, July 8, 2013
The Preservation Directorate of the Library of Congress announces
the next Topics in Preservation Series (TOPS) Lecture:

"Integrating analytical tools in treatment decision-making for a
    1513 hand-colored Ptolemy Geographia Atlas"
Library of Congress
101 Independence Avenue SE
Washington, DC 20540
Wednesday, July 10, 2013
10:30 am - 12 noon

Pickford Theater
 James Madison Memorial Building
 Third floor

(Please request ADA accommodations 5 business days in advance at
202-707-6362 or ada<-at->loc<.>gov

To participate via live webcast, send an email at least 3 days in
advance to Mary Oey, moey<-at->loc<.>gov


    Sylvia Albro
    Senior Paper Conservator
    Conservation Division
    Library of Congress

    John Bertonaschi
    Senior Book Conservator
    Conservation Division
    Library of Congress

    Lynn Brostoff
    Research Scientist
    Preservation Research and Testing Division
    Library of Congress

About the Lecture: The ongoing technical study and conservation of
an important 1513 hand-colored, printed edition of Ptolemy's
Geographia at the Library of Congress has posed interesting
challenges, especially in terms of the treatment of select maps that
are in poor condition due to the presence of verdigris pigment on a
poor quality paper, as well as a later restoration treatment. The
speakers highlight the results of quantitative x-ray fluorescence
(XRF) trace element analysis before, during, and after treatment of
several maps, and discuss how this method of analysis has served as
a key aid in the treatment decision-making process.

An offline discussion on current approaches to verdigris treatment,
focusing on research shared at the ICOM-CC Graphic Document Working
Group Interim Meeting in Vienna, April 18-19, 2013 will follow the

For further details and updated information about the series, please


Mary Oey
Library of Congress
101 Independence Ave. S.E.
Washington, DC 20540-4500

                  Conservation DistList Instance 27:5
                 Distributed: Wednesday, July 10, 2013
                        Message Id: cdl-27-5-012
Received on Monday, 8 July, 2013

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