Bluish chalcedony. Shape approaches the rectangular, with curved sides and corners rounded off. A sea-pantheress attacking a polypus.
By 1897: with Edward Perry Warren (according to J. D. Beazley, The Lewes House Collection of Ancient Gems, no. 103: Bought from W. T. Ready in 1897. From Athens according to the sender.); April 7, 1921: purchased by MFA from Edward Perry Warren for $ 30,000.00 (this figure is the total purchase price for MFA 21.1193-21.1221)
Francis Bartlett Donation of 1912