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The postal savings system was a savings bank operated by the government through local post offices. In the United States, this system was inaugurated in 1911 and reached its peak with over four million accounts in 1947. However, due to a decline in depositors to fewer than one million, the service was discontinued in 1966. The United States Postal Service, established in 1971, is responsible for processing and delivering mail and operates the largest postal system globally.123

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