Po-Pop-Pop April 1968 Bally Pinball Machine Backglass. Single Player, Electro - Mechanical, Production: 1,050, Designer: Ted Zale, Artist: Christian Marche, Theme: Psychedelic Art. Pinball Art USAOP-Pop-Pop 1968 Bally$60.00PriceSize*SelectMaterial*SelectQuantity*Add to Cart$60 - $435