1971 Mattel Instant Replay Discs
Country of origin: United States
Size: 2-3/8" diameter
In 1971 Mattel released the Instant Replay record player. The player’s sports-themed audio discs easily slide into the battery-operated device to (ideally) produce about 30 seconds of a recapped highlight. A second issue was made as well, which features two-sided discs. These are definitely pushing the limits of what is considered a ‘card’ but since PSA has graded them and they are thin enough to squeeze into a binder, they deserve to be part of a card collection.
Additional resources: Checklist + more info