#173 18th-C “Sulphide” Fox Under Glass

Exquisite and rare, this 18th century “sulphide” (an old hobby term for this type of reverse intaglio) depicts a fox against the blue textured background. Mounted on gilt copper. Shown in Ertell’s “The Colorful World of Buttons,” plate 15 #11. For date and process information about 18th-century reverse intaglios, see Elizabeth Hughes’ article in the February 2009 issue of the National Button Bulletin, page 10. Est. selling price is $3000 and up.