France: Gay-Lussac scientist bronze art medal by Xenia 1979. Â Joseph-Louis Gay-Lussac, 1778-1850, chemist and physicist, Â so medal produced approximately 200 years after his birth. Â He studied gasses and known for his discovery that water was composed of two parts hydrogen to one part oxygen.
Monnaie de Paris issue 68mm. diameter, weight: 179g.
