1936 Press Photo Dr. Charles G. Abbot Demonstrates Solar Heat Collector

Photo shows Dr. Charles G. Abbot, secretary of the Smithsonian Institution, as he demonstrated his Solar Heat Collector before a large gathering of delegates to the Third World Power Conference now meeting in Washington D.C. The three curved mirrors coll

Photo is dated 1936.

Photo measures 9 x 7.25 inches.

Photo back: