WWII playing card deck with hidden escape map - photos

[Altair]

WWII playing card deck with hidden escape map for allied prisoners of war.

Fullsize image: https://diqn32j8nouaz.cloudfront.net...1_fullsize.jpg





More:

https://bicyclecards.com/article/a-m...ide-the-cards/


Previously:


Playing card shuffling machine - GIF
Antique playing card trimmer - photo
Poker card cutting machine - GIF

[TheElderBrother]

I love spy gadgets. This is one of the better examples of hiding things of use to the man in the field in an object that looks totally innocent. What soldier would stop and closely examine a pack of commercial playing cards?

The only thing regrettable is that once a good idea succeeds, if its ever widely lauded for being a good idea it ceases being one since everyone now knows about it.