lower left in plate: Canal Grande/Venezia [C backwards] / FD [monogram, F backwards]; lower right in graphite Frank Duveneck
Reba and Dave Williams, Greenwich, CT; gift to NGA, 2008
- Poole, Emily. "Catalogue of the Etchings of Frank Duveneck." The Print Collector's Quarterly, vol. 25, 1938: 455, no. 19.