Struck under base and on cover flange with hallmarks (leopard's head, lion passant, date letter for 1758-9) and with maker's mark of Thomas Heming.
Made for Sir George Warren, KB. June 17, 1981, sold by an anonymous owner at Sotheby's, New York, lot 64, where most probably bought by Alan and Simone Hartman, New York, NY; 2001, gift of Alan and Simone Hartman. (Accession date: February 21, 2001)
Gift of Alan and Simone Hartman and Harriet J. Bradbury Fund