diameter: 1 1/2 in. ( 3.8 cm )
sticker: on back of button: "1967"
Circular pin-back button: "UNSCREW/the/WARMACHINE/OCT 21/WASHINGTON, D.C./Mass Mobilization [illegible]";image of a screw in center; black and orange.
Gift of Toni Ellen Heisler
Due to ongoing research, information about this object is subject to change.