Lovely antique watch pin from Art Nouveau period. This wonderful piece has the swirling symetrical design so typical of the Art Nouveau period.  The piece is has a gold overlay over a base metal and dates from 1890 to 1910.  It is marked "G Manufacturing Company" in two places, on the early safety catch and again on the watch pin's hook.  The hook allows you to wear this piece as a necklace as well as a pin.  It is delicate in size measuring 1 1/8" wide by 3/4" tall.

Back view: