This agate stud-backed button with a silver boss was among a larger set owned by George Washington. Originally numbering a dozen or more, the semi-opaque hemisphere of precious stone offered a unique embellishment to one of his formal coats. The white and brown striations in the stone would have offered a sharp visual contrast and compliment to the black velvet suits he often wore during his presidential years.

See also buttons, W-2343/A-D and W-2344/A&B, and gold brooch, W-2777.