Vintage 1976 Irwin giant 30 games cube new in the box

Giant 30 Game Cube is a set which when assembled forms a cube 18 inches on each side. Each side is a board used to play at least one of the games in the set. Pieces are also provided for most of the games. The games not listed in the "Contains" section are mostly Chess and Checkers variants that do not have database entries. There is also a Fox & Geese variant and two simple racing games. The set is mostly of interest because two of the games (Nine Holes and Chase) are original designs by Sid Sackson which have never been reprinted