Vintage WWII Keep Em' Flying Sweetheart Pin. There is some wear to the gold plating as pictured, Overall a great collector's piece in very nice condition.
Sweetheart jewelry was originally given by service members to their sweethearts. Started in WWI this tradition became increasingly more popular during World War II when clothing was heavily rationed and simple with few embellishments. Sweetheart jewelry provided a connection to a loved one fighting in the war and added a pop of color or style to clothing.