9 cm (diameter)
Provenance: Sir John Pope-Hennessy, CBE, Palazzo Canigiani, Florence, until his death in 1994, by descent until 2014; Private Collection, London
Publications: Centro Di Cataloghi 48, Gli Ultimi Medici: Il tardo barocco a Firenze, 1670-1743, Detroit Institute of Art, 1974, p. 148
Vernon Hyde Minor, Passive Tranquility: The Sculpture of Filippo Della Valle, Volume 87, Part 5, p. 89.
Vernon Hyde Minor, Filippo della Valle as Metalworker, Art Bulletin, 1984, pp. 511-514