The Antique Game of "Contack" is Triangular Dominoes. Sort of.

The game of Contack was invented in 1938 by two entrepreneurs in Tulsa, Oklahoma and immediately licensed by Parker Brothers. Over the next 25 years (or more), it was a popular product in their catalog. It faded from the scene in the 1960s. The root of the game is matching colors and numbers, and the turn-by-turn process is very much like dominoes. But due to the triangular shape of the tiles, there is some interesting strategy in how you escalate your score. On the other hand, it's a fine little "match-up" game for the family to play. (Don't take it too seriously.)