Streifzüge durch die Umwelten von Tieren und Menschen: ein Bilderbuch unsichtbarer Welten
In: Verständliche Wissenschaft 21
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In: Verständliche Wissenschaft 21
Set of 6 black and white negatives in envelope labeled "Bass Camp aerial views negatives." Sizes include 12 x 17 cm, 6 x 9 cm. Images are reprints of government aerial imaging done of the Bass Camp area (Minnesota City) of the Mississippi River and Lock and Dam 5, and an Army Corps of Engineers (St. Paul office) elevated view of Dam no. 5. Print dates unknown; dates taken from items' original creation date printed on piece. Part of the Cal R. Fremling collection. 6 x 9 cm - "Upper Miss. River -- Dam no. 5. P.W.A. Cont. W923 ENG. 654, General view from Chimney Rock of Completed Lock and Dam. U.S. Engineer Office, St. Paul, Minn. June 15, 1936, No. 283." 12 x 17 cm - 8-11-65 10:08 ASCS-1:20000 BHM-5FF-85 - 8-11-65 BHM-5FF-81 - 7-31-51 BHM-2H 155 - 7-31-51 BHM-2H 148 - 5-2-39 BHM-5-7 ; https://openriver.winona.edu/calfremlingphotographs/1004/thumbnail.jpg
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