Overall: 2 x 2 x 1/8 in. ( 5.1 x 5.1 x 0.3 cm )
in relief: around edge of impression: "LEGATION [OF] THE [UNITED] STATES [OF] AMERICA / TO / GREAT BRITAIN"
Red wax wafer with circular seal impression, affixed to paper backing.
Due to ongoing research, information about this object is subject to change.