Half-moon tie pin 19th century 18kt gold natural pearls Napoleon III. Tie pin in 18 carat gold hallmarked, French work. Late 19th century period. Moon motif, set with small natural pearls, enhanced with a gallery in perfect condition. The pin is slightly twisted but solid. This one weighs 1.4 g. It measures approximately 6.1 cm long for a maximum width of 1.2 cm. Condition: Used: Item that has been used. ... Used: Item that has been used. any imperfections. Brand: Antique Vintage Metal purity: 18 carats Metal: Yellow gold