Yamatake Data Products

Yamatake data Products

(1974)
– clear plastic box

This is an advertising deck for Yamatake data products.
The corner indicies are conventional, but underneath each number/symbol the numbers 8-4-2-1 appear vertically. The value of the card can be “computed” by adding the numbers which are “highlighted”. For example the 5 is 4+1, and the Jack is 8+2+1.