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Object number
A-298
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Classification
Surveying
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Object name
Level
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Title
Level: Bubble
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Creator
Unidentified
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Description
Portable striding bubble level with inverted-V feet intended to straddle a theodolite's telescope. Three fine adjustment screws for glass reservoir. Reservoir graduated with 2 sets of 20 hatch marks; no numbers. Used with the universal instrument by Ertel und Sohn and Utzscheinder und Fraunhofer, c. 1834-1840 (L-28).
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Inscription/Sig.
Unsigned.
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Period
c. 1835
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Material
brass
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Place Of Prod.
Germany
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Dimensions
|
Imperial(in) |
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Metric(cm) |
| Height |
|
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9.9 |
| Width |
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19 |
| Depth |
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4.2 |
| Diameter |
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|
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| Circumference |
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|
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Frame
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Imperial(in) |
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Metric(cm) |
| Height |
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|
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| Width |
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| Depth |
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| Diameter |
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