Vintage WWII Red Cross Production Corps pin. The front says "American Red Cross Volunteer" and the back is marked A-9615-P. There are small chips along the edge.
The Production Corps was the largest of the Red Cross Volunteer Special Services. They made and repaired 64 million pieces of clothing, prepared over 2.5 billion surgical dressings and assembled 30 million comfort kits for use by the US military and its Allies as well as civilian victims of war. In 1942-43, there were 3.5 million volunteers.