The WWI WWII Son in Service Over There Sign is a blue star on a white star on a red background. Most of these signs were made of cardboard and handmade by the mothers of sons who were serving overseas. Our sign is made of aluminum for durability.
The son in service star first appeared during WWI and gained popularity during WWII. In WWII, it also sometimes was used for a daughter in service. Today, it is an official service flag authorized by the Department of Defense for display by families of any servicemember for the duration of any period of war or hostilities that the United States is involved in.