Mary, Queen of Scots used a “spiral locking” technique to seal the last letter she wrote before her execution, indicating that she wanted the contents to remain secret, according to research published ...

Mary, Queen of Scots used a “spiral locking” technique to seal the last letter she wrote before her execution, indicating that she wanted the contents to remain secret, according to research published ...

Mary, Queen of Scots used a “spiral locking” technique to seal the last letter she wrote before her execution, indicating that she wanted the contents to remain secret, according to research published ...

Recent research highlights the use of letterlocking techniques by Queen Elizabeth, Catherine de’ Medici and Mary Queen of Scots. By William J. Broad To safeguard the most important royal ...