When did Multiple Daily Mail Deliveries to Residences and Businesses in NYC Stop?

Formerly, New York City had up to four residential mail deliveries a day. This was reduced to two by 1940, and the second residential delivery was eliminated in 1950. Multiple mail deliveries to businesses continued into the 1990s, but for many years now, New Yorkers have been used to getting mail at home only once a day, in the afternoon.

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