Is this intricate folding method how European Royals shared

Is this intricate folding method how European Royals shared their most important secrets?

According to a new article in the Electronic British Library Journal, 16th century royals including Mary Queen of Scots would regularly use spiral letterlocking to send notes securely,

Related Keywords

Ireland , United Kingdom , France , French , British , Jana Dambrogio , Mary Queen , Graham Davis , Jacques Sennacques , Queen Elizabeth , Nature Communications , Queen Mary University Of London , Electronic British Library Journal , European Royals , King Henry , King Charles , Queen Mary University , Raimond De Beccarie , Pierre Le Pers , Dailymail , Femail ,