A reading of the important weights and measures memo from the 14th century.

Photo behind player is of the Royal Observartory display of standard measurements in the 19th century and is courtesy of Zlatko Krastev, November 2005 ; Автор: Златко Кръстев, ноември 2005 – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=404816

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