Pierre Petit (Photo.). Dr. Voronoff. [Paris] : [Early 20th Century Publisher], [1900-1940s?]. B&W postcard, 5.5 x 3.5 inches. Very Good. Minor signs of handling and age. Handwritten notation on bottom edge. Scarce. Item #17-3528 Price: $50.00 Add to Cart Ask a Question See all items in Ephemera See all items by Pierre Petit, Photo.