Kerrich, Thomas, Rev - Artist
Cathedral of Sienna - Great Door
As I gather its Design from an Elevation of the Front of the Church, engraved by Maximilian Limpach 1719, at Rome - the drawing was made [by] Lelio Cosalti of Sienna.
Archæologia XIX. p. 368.
On the Use of the Figure called Vesica Piscis in the Architecture of the Middle Ages, and in Gothic Architecture; by
T. Kerrich, M.A., F.S.A., January 1820.
Archæologia XIX. p. 353.
Reference (free text)
T Kerrich, 'Observations on the Use of the Mysterious Figure, Called Vesica Piscis, in the Architecture of the Middle Ages, and in Gothic Architecture', Archaeologia 19 (1821): 353-68.Illustration (Engraving), fig. 44, pl. XXX, between pp. 368 and 369.