Complex sentence: Hex was also issued as one of the games in the 1974 3M Paper Games Series; the game contained a 5½ × 8½ inch 50-sheet pad of ruled hex grids.
Split into simpler sentences: Hex was also issued as one of the games in the 1974 3M Paper Games Series. The game contained a 5½ × 8½ inch 50-sheet pad of ruled hex grids.