ANY HELP ON THESE WOULD BE APPRECIATED. IT IS WELL MARKED ROBBINS CO. ON THE REVERSE AND IT IS OF THE STRAIGHT DROP IN TYPE OF PIN. APPEAR TO HAVE GOLD FINISH OR SOME GOLD CONTENT BUT NOT SILVER UNDERNEITH, PROBRABLY A BRASS UNDERLAY. HERE ARE 4 PHOTOS. I THINK 1918-1924 PERIOD BUT PLEASE CORRECT ME IF NOT. I KNOW A LATER TYPE WITH STERLING ARRIVES ABOUT 1930. THANKS AGAIN. Ron

ALSO WELL DEFINED ETCHED FEATHERS UNLIKE LATER ONES I'M USED TO SEEING.

PHOTO 3

PHOTO 4

ONE LAST THING.. THEY DON'T LAY FLAT AND ARE VAULTED IN STYLE. JUST WOULD LIKE TO KNOW IF THEY ARE THE 1918 STYLE. THANKS.