File:Britannica Range-Finder, Depression.jpg
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Summary
| Description |
English: Depression Range-Finder is an instrument used in harbour forts for defence. |
| Date | published 1911 |
| Source | 1911 Encyclopædia Britannica, Vol. 22, p. 890 |
| Author | Unknown author |
Licensing
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:11, 16 March 2020 | | 1,100 × 750 (179 KB) | Francois-Pier | Uploaded a work by {{unknown|author}} from 1911 Encyclopædia Britannica, Vol. 22, p. 890 with UploadWizard |
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