Very rare Chile button. The button is made by the Socialist Party of Chile when they ruled the country as part of the Popular Unity coalition with Salvador Allende as leader. He is pictured on the button.
The button is made of a red plastic with a cardboard with the image, covered by a plastic layer. The plastic on one side of the button is open (see the video).
A militairy coup with Pinochet as leader overthrew the Popular Unity coalition with force in 1973. President Allende killed himself during the attack of the armed forces.