Signed Kohn antique Edwardian 10k gold stylized heart and fleur de lis shape brooch pin. Measures 15/16" x 7/8", weighs 2.6 grams. Very versatile, can be worn in a manner of ways- as a brooch, on a chain as a necklace pendant, or as a watch pin (or hang any favorite goodie from the hook on the back). Hallmarked and maker marked on the simple "C" shaped clasp assembly- all findings are original. In excellent condition. Circa 1910- 1915. Originally used to hang ladies lapel watches, lockets, or your favorite goodies or trinkets. The pin has a lovely subtle satiny frosted bloomed gold finish.
Kohn & Company- (Newark, New Jersey). Manufactures of 10k and 14k gold jewelry. Described as making all types of jewelry pieces EXCEPT rings and bracelets. They advertised in the trade publications Jewelers Circular and Keystone from 1909 to 1931.
"BLOOMED GOLD"- The frosted finish or satin finish of bloomed gold is the result of bathing the gold in acid. This finishing technique is typically seen on turn of the century Victorian and Edwardian jewelry, although it dates back to its original use in the mid 1800s. The recipe involved boiling the gold in a mixture of salt, water, hydrochloric (muriatic) acid, and salt petre (potassium nitrate). The process created extremely tiny scarring in the surface of the gold which left a matte finish resembling peach skin- and referred to as "bloomed-gold". The finish was also used on only portions of a piece of jewelry, creating a dramatic contrast to a highly polished background or foreground.