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Polar Planimeter
| Marking: | - |
| Serial Number: | 213 |
| Year: | ca. 1856 |
| Size: | 23 x 5 x 3 cm |
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Polar Planimeter
| Marking: | - |
| Serial Number: | 543 |
| Year: | ca. 1857 |
| Size: | 26 x 5 x 3 cm |
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Polar Planimeter
| Marking: | - |
| Serial Number: | 582 |
| Year: | ca. 1857 |
| Size: | 30 x 5.5 x 3 cm |
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Pantograph Planimeter
| Marking: | - |
| Serial Number: | 8164 |
| Type: | 5 |
| Year: | ca. 1870 |
| Size: | 31 x 6.5 x 5.5 cm |
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Polar Planimeter
| Marking: | - |
| Serial Number: | 11225 |
| Type: | 3 |
| Year: | ca. 1880 |
| Size: | 28 x 5 x 3.5 cm |
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Polar Planimeter
| Marking: | - |
| Serial Number: | 10849 |
| Type: | 4 |
| Year: | ca. 1880 |
| Size: | 27 x 5 x 3.5 cm |
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