RARE! Astronomy Pioneer Wlodzimierz Zonn Hand Signed Envelope

  

"Polish Astronomer" Wlodzimierz Zonn Hand Signed Envelope. February 28, 1975 was a. Where he later worked as a professor. From 1950, Zonn was director of.

Many years (1952 - 1955 and 1963 - 1973), he was President of the.