This a Red Cross Service Pin Award from WWII.
The pin is in excellent condition. I has a beautiful Blue enamel surrounding the inner white enamel with a gorgeous red enamel cross.
I have no idea what the metal is, it is not marked. However it doesn't have any tarnish or discoloration.
The Red Cross pin is approximately 1 1/16" tall x 13/16" wide x 1/4" deep including the pin.
Please ask any questions you might have. I will be glad to answer them.
Thank you for looking.