Early view of Constantinople (Istanbul) by Gaudin broth. circa 1860 or earlier.
Alexis Gaudin (1816-1894) and Charles Gaudin (1825-1905) are among the first photographers to offer views of Turkey.
The Gaudin brothers specialized themselves in the production of stereoviews from France, Italy, and here Ottoman Empire.
They had a shop in Paris, rue de la Perle.
Shipping cost 15 $