Visitors can try their hands at coding post, and an original 1950s ELSIE electronic sorting unit derived from wartime code-breaking technology will be on display, along with previously unseen 19th-century maps of London.
Public use of postcodes for machine sorting was first trialled in Norwich in 1959. When the scheme was rolled out nationwide, the three-letter NOR code was replaced by two letters and a number.
Image credit: Royal Mail Group, Courtesy Of The Postal Museum
Visitors to the Postal Museum can take a ride on Mail Rail, the narrow-gauge underground railway that once kept the mail coursing through London for 22 hours every day.
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