It is unknown how the second edition was packaged. It may have had the board and components in one box, or it may have had the board and a separate components box. However this version did have a "real" fold-up game board with the printed game sheet glued onto hard panels.
The dimensions given for the version are for the folded up game board. When opened the game board is about 25 1/4 inches by 9 1/4 inches.