1. A deck of symmetric playing cards, which can be held in either of two opposing orientations to provide equivalent card designations, and comprising a plurality of individual cards, each card having a front and back face, first designator means in a first location of the front face for associating a first designation to the card when retained in a first orientation, second designator means equivalent to the first designator means in an opposing location of the front face for associating a second designation to the card when retained in a second orientation opposite to the first orientation and equivalent to the first designation, said first and second designators being alphabet indicia, whereby the card is symmetric in its two orientations, first indicator means in a third location of the front face associated with said card in its first orientation for providing an indication of the second designation, second indicator means in a fourth location of the front face, associated with said card in its second orientation for providing an indication of the first designation of the card, and further comprising a numeric indication means in both orientations of the card for designating a single numeric value to each card for both first and second designations in both first and second orientations.
1. A deck of symmetric playing cards, which can be held in either of two opposing orientations to provide equivalent card designations, and comprising a plurality of individual cards, each card having a front and back face, first designator means in a first location of the front face for associating a first designation to the card when retained in a first orientation, second designator means equivalent to the first designator means in an opposing location of the front face for associating a second designation to the card when retained in a second orientation opposite to the first orientation and equivalent to the first designation, said first and second designators being alphabet indicia, whereby the card is symmetric in its two orientations, first indicator means in a third location of the front face associated with said card in its first orientation for providing an indication of the second designation, second indicator means in a fourth location of the front face, associated with said card in its second orientation for providing an indication of the first designation of the card, and further comprising a numeric indication means in both orientations of the card for designating a single numeric value to each card for both first and second designations in both first and second orientations. 3. A deck of playing cards as in claim 1, wherein said cards are substantially rectangular in shape having opposing short sides and opposing long sides, said first designator means being located in one corner and said second designator means being located in a diagonally opposing corner.