Analysis of information sources in references of the Wikipedia article "Digesting Duck" in English language version.
... sans la voix de la le Maure, & le canard de Vaucanson, vous n'auriez rien qui fit ressouvenir de la gloire de la France.
In 1882, someone wrote a letter to a German newspaper claiming they had seen the duck in a private museum in Krakow during the summer of 1879. But within days the museum had burnt down.
