And indeed the United States Postal Service itself operated a savings bank system from 1911 until 1967: https://en.wikipedia.org/wiki/United_States_Postal_Savin

And indeed the United States Postal Service itself operated a savings bank system from 1911 until 1967: https://en.wikipedia.org/wiki/United_States_Postal_Savings_System https://en.wikipedia.org/wiki/United_States_Postal_Savings_S...