Presentation of PIPSC Gold Medal to Andrew Thomson - May 22, 1952

 
l to r:  Dr. OM Solandt, JS McGiffin (Secretary-Treasurer, PIPSC), Andrew Thomson, H McLeod (President, PIPSC), Hon. Paul Martin (Sr), Hon. Lester B Pearson.

(originally published in Atmosphere, volume 11, no. 4 1973)

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