Brothers of Haüy by J. Boilly, Alphonse Boilly
Brothers of haüy (rené just haüy [behind] and valentin (front). Date: 19th century. Medium: engraving.
Author: Alphonse Boilly (1801–1867) After Julien-Léopold Boilly (1796–1874)Source: https://commons.wikimedia.org/Loading...