A London man received a letter addressed to someone that used to live in his home, and was shocked when he noticed the postmark with the year “16” on it. “We thought it was 2016,” said Finlay Glen, adding that they realized it was 1916 when they noticed that the stamp featured a king and not a queen.

While it was a normal letter, letting “My dear Katie” know that Christabel Mennel was vacationing in Bath, England. In a statement, the Royal Mail said they “have no further information on what might have happened” to delay the letter’s delivery by more than a century.

Source: UPI