Descartes, Rene (1596 – 1650)
Rene Descartes was a French mathematician and philosopher who is known as
the Father of Modern Philisophy. In mathematics the Cartesian coordinate system
is named for him. He also orignated the notation of superscripts representing
powers or exponents.
Links to my other sites that connect Descartes to
Stamps
First Day Covers
Paper Money
Obverse 
Reverse 
Description 


France, 100 francs, 1942 


France, 100 francs 
FAKE  Notice the serial number is 00000 

Coins and tokens
Obverse 
Reverse 
Description 


France, 100 Francs, 1991 


France, ECU, 1993 