Drawings by Paolo Girolamo Piola of the same technique are in Darmstadt (U. Knapp in Genueser Zeichnungen des 16. bis 18. Jahrhunderts im Hessischen Landesmuseum Darmstadt, Darmstadt, 1990, nos. W21-2) in Stuttgart (M. Newcome, Genoese Baroque Drawings, exhib. cat., Binghampton, University Art Gallery and elsewhere, 1972, no. 125) and another, also for a ceiling compartment was sold at Christie's, 11-13 December 1985, lot 263.