CPB COLAS #297 AND 314 "BIG BEN" AND "DUBL DUCK" ADVERTISING LITHO BUTTONS.
Largest is 7/8". First has baseball motif with bottle at center and text "Boost Big Ben Beverages". Almost no wear present. Mint. Second features two ducks and reads "Drink Dubl Duck". Minor paint crazing seen at angle. Exc.
Pictures (click images to zoom in)