error card; misprinted card
Refers to a collectible card (such as a telephone card, trading card, or prepaid card) that has a printing mistake, making it rare and sometimes valuable.
wasei-eigo (Japanese-coined English), from error card
This error card is traded at a high price among collectors.
Variant with a middle dot, sometimes used in product listings or technical contexts.
Wasei-eigo from English 'error' + 'card'. The term is used in Japanese collector communities for misprinted cards.