Added 6 days ago | 00:00:13 | 161 views
This small pocket-sized device shows the alphabet as it’s signaled using semaphore flags. Turn the dial, and look in the window by the sailor’s right foot to see the letter he’s signaling. (Turn the disk around, and you’ll see what the f...
Added 5 months ago | 00:00:22 | 2996 views
This letterlocking format was used exclusively by Russian Soldiers during World War II. Sealing the letter shut was forbidden. The format could be easily identified, opened by censors and reviewed, refolded and send forward to the intend...
Added 6 months ago | 00:04:28 | 1827 views
Amalia’s letter to Eleonore de Volvire is one of condolence, as Eleonore’s husband, François de l’Aubespine (1584-1670), Marquis de Hauterive-Châteauneuf and governor of Breda since 1639, has just died. The black sealing wax and black fl...
Added 6 months ago | 00:01:53 | 2830 views
Elizabeth Stuart used ciphers, special codes that need a key to unlock them, to hide information from prying eyes. So far seven of her keys, typically alphabets of 24 letters – in seventeenth-century script i/j and u/v were interchangeab...
Added 6 months ago | 00:05:42 | 3010 views
Most of Elizabeth Stuart’s letters are holograph, or in her own hand. Secretarial letters were the most likely to be intercepted and opened in the expectation of politically useful content within. From the moment of her husband's death i...
Added 6 months ago | 00:04:45 | 2105 views
2.0g gum arabic crystals 10.0g of oak galls 2.5g iron sulfate 1. Dissolve the gum arabic in water making a light, sticky solution, set aside. 2. Crush two galls (they look like nuts) with a hammer. Place them in a litre beaker a...
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