File:AbneyLevel.JPG
Summary
<a href="https://en.wikipedia.org/wiki/Abney_level" class="extiw" title="w:Abney level">Abney level</a> or <a href="https://en.wikipedia.org/wiki/Inclinometer" class="extiw" title="w:Inclinometer">Inclinometer</a> made by <a href="https://en.wikipedia.org/wiki/Eugene_Dietzgen" class="extiw" title="w:Eugene Dietzgen">Eugene Dietzgen</a> Company of <a href="https://en.wikipedia.org/wiki/Chicago" class="extiw" title="w:Chicago">Chicago</a> circa 1936 (serial number 22098). The scale is reversible. As shown in the photo, it is set for measuring <a href="https://en.wikipedia.org/wiki/percent_grade" class="extiw" title="w:percent grade">percent grade</a>. The reverse measures <a href="https://en.wikipedia.org/wiki/degrees_of_arc" class="extiw" title="w:degrees of arc">degrees of arc</a>.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:38, 13 January 2017 | | 1,137 × 853 (52 KB) | 127.0.0.1 (talk) | <a href="https://en.wikipedia.org/wiki/Abney_level" class="extiw" title="w:Abney level">Abney level</a> or <a href="https://en.wikipedia.org/wiki/Inclinometer" class="extiw" title="w:Inclinometer">Inclinometer</a> made by <a href="https://en.wikipedia.org/wiki/Eugene_Dietzgen" class="extiw" title="w:Eugene Dietzgen">Eugene Dietzgen</a> Company of <a href="https://en.wikipedia.org/wiki/Chicago" class="extiw" title="w:Chicago">Chicago</a> circa 1936 (serial number 22098). The scale is reversible. As shown in the photo, it is set for measuring <a href="https://en.wikipedia.org/wiki/percent_grade" class="extiw" title="w:percent grade">percent grade</a>. The reverse measures <a href="https://en.wikipedia.org/wiki/degrees_of_arc" class="extiw" title="w:degrees of arc">degrees of arc</a>. |
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