Paintings in Museums and Public Art Galleries:
J. Paul Getty Museum, Los Angeles Portrait of Cavaliere Gabburri, 1740
Kunsthistorisches Museum Databank, Vienna (in German) 
Minneapolis Institute of Arts, Minnesota  St. Philip Neri in Glory, 1731
Palazzo Montecitorio, Rome (mostly in Italian)  Ratto d'Europa
Ringling Museum of Art, Florida Harlequin as Painter, ca.1740s
State Museums of Florence Digital Archive, Italy
Professional Tools:
Artprice
Pictures from Image Archives:
Giovanni Domenico Ferretti in the Art Renewal Center
Giovanni Domenico Ferretti at CGFA 
Giovanni Domenico Ferretti in the Web Gallery of Art 
Ciudad de la Pintura (in Spanish) 
Farbdia Archiv (Color Slide Archive) (in German)  Thousands of photographs of fresco cycles and wall decorations in churches and other buildings in and around Germany. Click "Galerie" for a normal overview; click "digilib" to zoom in.
Articles:
Union List of Artist Names (Getty Museum) Reference sheet with basic information about the artist and pointers to other references.
|
|
|
|