A "punch card" for the Hasbro Think-A-Tron, a trivia game simulating a main frame computer. Somewhat disappointingly, the holes in the cards are only for show. The answer is actually encoded as a notch on the leading edge of the card; there are five possible positions for notches, which allows up to five alternative answers (A, B, C, T, F, where T and F correspond to True and False). When the card is inserted, its notch engages a lever that allows the wheel inside to rotate and light up one of five letters (Gardi 2020). The light bulb inside is powered by 2 D-size batteries, which are inserted in the compartment on the bottom. The game came with 300 cards; additional cards could be purchased in packages of 50.