Marian Rejewski, Jerzy Różycki, and Henryk Zygalski were Polish mathematicians and cryptographers who worked for the Polish General Staff's Cipher Bureau in the 1930s. They made key contributions to ...

Henryk Plociennik's work has been offered at auction multiple times, with realized prices ranging from 48 USD to 7,684 USD, depending on the size and medium of the artwork. Since 2014 the record price ...

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