Rota Die (Rota Dice) by Marvillo
Although the Badlands Bob effect has long been considered a Collectors’ Workshop original and credited to Phillipus (Phil) Postma of the Netherlands, the same effect was also invented and called Rota Die by Marvillo of West Germany and sold by Magictrix c. 1968 in the UK. Marvillo created many dice tricks and also wrote a …