Why are ATM cards standardized to a particular physical size?

Asked Oct 8, 2015· 1 answer
Faisal KhanAnswered Oct 8, 2015
Whilst the standard is set globally via ISO/IEC 7810 - the origination of the card size stems from the visiting card and credit cards and the wallets.

See: Faisal Khan's answer to How was the standard size of a credit card or a business card established?
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