1.25" blue and silver button used to promote 1939 Universal serial starring Buster Crabbe. Text reads "Buck Rogers Strange World Adventure Club" and shows him in space helmet with rocketship to the right plus faint figure of man holding space gun at lower right. Button was issued along with a membership card by movie theater. Complete with Phila. Badge backpaper. Sixth we've seen. Last two we offered from a consignor ranged from $3,000 down to $1,500 for one with minor condition issue. This one comes from 40 year collection. Loss of some brassy tone flashing from reverse collet but cello front is exceptionally free of surface wear, even under magnification. Exc. and visually a superb example displaying Mint. See next rare Flash Gordon movie serial club button.