French 19th Century Apothecary Jar in handsome amber mouth blown glass. Antique French label reads “Chlorate de Potasse” potassium chlorate is a white crystalline substance and a key ingredient in early firearms; also used in disinfectants, matches and fireworks. From Mane in southern France, Ca. 1900. Antique apothecary jar (C922). Dimensions: 10”H x 4.5”Diam. Additional Shipping: $10.