yellow badge
noun1
Historical A cloth patch that Jews were ordered to sew on their outer garments to mark them as Jews in public, especially in Nazi-controlled states during the 1930s and 1940s.
- He might make us, like the Jews, wear yellow badges […]1663, Giles Oldisworth, The Stone Rolled Away, and Life More Abundant: An Apologie Urging Self-denyal, New-Obedience, Faith, and Thankfulneſſe, London: Thomas Ratcliffe, page 425: