Probably designed by Thomas Cains (active 1812–ca. 1820)
Manufactured by Phoenix Glass Works (1812–27)
Made in Boston, Massachusetts, United States
Free-blown and pressed glass
H. 9 3/4 in. (24.8 cm)
Gift of Dr. Michael Heidelberger, in memory of Nina T. Heidelberger, 1982
On view at The Met Fifth Avenue in Gallery 704
This lamp’s decorative “mercurial ring” was created by tooling a deep indentation in the still-molten surface and then smoothing the glass over the groove. When viewed from the outside, the ring of trapped air appears silver.