5.5x7.25x1.25" deep box contains complete contents of cards. ©1966 Space Productions. Koide Shinkosha. Produced exclusively for the Japanese market. Box lid has great illustration of the Robinson Family. Box is complete w/original cardboard insert. Scattered edge wear on box lid, w/moisture staining along left. Fine. Half of the cards have illustrations of "Lost In Space" characters/aliens/devices w/other cards having matching text. We assume game play was to match descriptive text to what characters were doing on opposite card though text is in Japanese. Some images include - cyclops, space guns, flying saucer (on 11 cards), The Chariot vehicle (on 5 cards), aliens, Robot (5 total cards, including one of him playing guitar), spacewalk and cards were separated into four equal size decks and are complete w/original paper bands w/Japanese text. Cards appear unused, NM/Mint.