Signature: engraved below: "G. Kneller pinx." (partly trimmed); and "J. Houbraken sculp. Amst."
Inscription: engraved below image: "In the Collection of His grace the Duke of NewCastle"
Donor: Morrison H. Heckscher
O'Donoghue 2; Ver Huell 73
Alexander Willem Carel Maurits Ver Huell Jacobus Houbraken et son oeuvre. Arnhem, 1875, (under Birch's Heads), cat. no. 73.
Freeman O'Donoghue Catalogue of Engraved British Portraits Preserved in the Department of Prints and Drawings in the British Museum. vols. 1-5, London, 1908–22, cat. no. 2.