A 6 ft. experimental horn type sound detector, equipped with sets of horns mounted in a multiple quad azimuth configuration, is shown at Ellington Field in Houston, Texas. This photograph was taken in December 1918 and is labeled as subject number 54851 in the collection of American military activities during World War One.
RMID:Image ID:2RCAKGK
Image details
Contributor:
piemags/NSC / Alamy Stock PhotoImage ID:
2RCAKGKFile size:
140.7 MB (3.8 MB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
8486 x 5794 px | 71.8 x 49.1 cm | 28.3 x 19.3 inches | 300dpiDate taken:
1 May 2017More information:
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