A GOLD AND LAPIS LAZULI SEAL WITH BLOODSTONE MATRIX
UNMARKED, CIRCA 1840
The lapis sphere applied with diamond-set monogram WW, the gold mount formed as a stylised earl's coronet, the circular matrix with intaglio crest above a monogram
2 in. (5 cm.) high
Christie's East, New York, 26 May 1983, lot 410.