Holocaust - Jewish item  - Halt Hitler anti-Nazi pin-back button manufactured during World War II approximately in 1941 or 1942 in Canada or the United States.
Circular paper covered metal pin-back button. The paper has a blue background with a 6-pointed Star of David at the top and 2 lines of English text below printed in white ink. The metal backing has an inset straight pin.
Dimensions:  1.250 diam. in. (3.175 diam. cm.)
Very good condition . Same pin you can find in the United States Holocaust Memorial Museum !