Recently I received a little "treasure chest" from my uncle Cees de Jong. Among many other papers pertaining my grandparents, it contained my maternal grandmother's wartime identity card:
My grandmother's 1941 ID-card
This ID-card ("persoonsbewijs" in Dutch) was introduced in The Netherlands by the Germans during World War II in April 1941.
My Little Treasure Chest
I'd never seen a photograph of my grandmother before she was a bended little old granny, so this ID-card is a real "treasure" for me!