Canaletto, Stonemason’s Yard
Stonemason’s Yard is another sight of Venice where the sky is painted with Prussian blue shortly after its discovery by Diesbach in Germany.
Canaletto, The Feast Day of Saint Roch
The Feastday of Saint Roch: Canaletto’s use of Prussian blue for the sky is one of the earliest occurrences of this pigment in the history of painting.