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#Daily delivery pin-up n° 1462 : #Art #Challenge #Drawing #Sexy #Illustration
#dailysketch 1462 / #garabatodeldía 1462. #Supergirl http://t.co/MlChX9cPLR
Polygraphiae (1518) by Johannes Trithemius. The first printed book on cryptography. He was born #OnThisDay in 1462.