
A betting device is disclosed for indicating all of the combinations of numbers, for example 1 through 12, in groups of only two or three different numbers each, from at least three or four different preselected ones of the numbers. The device comprises a base card having combinations of the numbers 1 through 12 in groups of only two or three different ones of the numbers each thereon. The device further includes a first partially adiaphanous and partially transparent overlay sheet which covers ...











