In the current issue of Restauro 2004/5 (Munich), a German conservation magazine, is an article on "Schweinfurter Grün", an early synthetic pigment and dye. I haven't read it yet, but you might find helpful references there.
Angelika Riley
Textilrestaurierung
Museum für Kunst und Gewerbe
Steintorplatz
D-20099 Hamburg
www.mkg-hamburg.de
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Tel: 0049-(0)40/42 81 34 27 53
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