This is a rare and highly sought-after Sigma File board game by Gibsons Games. The game is an original conspiracy theory game from the 1970s, featuring strategy and intrigue. It is ideal for 2 players or more, and comes complete with all game pieces and elements. The game is perfect for collectors and enthusiasts of vintage board games, and is sure to provide hours of entertainment and excitement. With its unique theme and gameplay, The Sigma File is a must-have for any serious game collector. Get your hands on this rare gem today!