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Still, it would seem unlikely that there are any mechanisms that would render the letter unreadable if opened incorrectly. It would be fascinating to see such a
by oneeyedpigeon 8y ago
Still, it would seem unlikely that there are any mechanisms that would render the letter unreadable if opened incorrectly. It would be fascinating to see such a construction, though - I’m picturing something similar to the dagger device but with several complex 'plaits' and some fragile scored folds that would somehow interconnect and 'shred' if opened in an obvious way.
- Someone 8y agoShredding isn’t sufficient protection, unless the shreds are truly tiny. Some explosive or easily burning material beneath the seal could thwart attempts at using heat to remove the seal without breaking it. You could also use the technology of a match box to put the letter on fire if opened in the wrong way, or use small glass containers that wrap around folds like paper clips do, and, when broken, release a chemical that destroys the letter (killing the culprit trying to read it without knowing how to open the letter also would be an option). Another option is a device that cannot be opened in an oxygen-rich atmosphere. The challenge, of course, would be to seal such a letter, and to safely transport it (big seals already can be a challenge there, as they can easily break)
- code_duck 8y agoA dye pack could be an option, like used for currency bags in bank robberies and anti-shoplifting devices.
- Someone 8y agoGood idea, but a strong acid probably would do better than paint. With paint it will be difficult to make the letter truly unreadable.
- BrandoElFollito 8y agoThat's right, the contemporary paint is rather there to mark the notes and raise suspicion when used