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Polar Planimeter
| Marking: | - |
| Serial Number: | - |
| Type: | III |
| Year: | ca. 1882 |
| Size: | 38.5 x 6.5 x 5.5 cm |
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Rolling Disc Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 213 |
| Year: | 1886 |
| Size: | 32 x 17 x 8 cm |
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Freely Suspended Polar Disc Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 254 |
| Year: | 1886 |
| Size: | 41 x 22 x 9.5 cm |
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Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 704 |
| Type: | III |
| Year: | 1888 |
| Size: | 38.5 x 5.5 x 5.5 cm |
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Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 1172 |
| Type: | I |
| Year: | ca. 1890 |
| Size: | 26 x 5 x 5 cm |
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Rolling Sphere Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 537 |
| Year: | 1890 |
| Size: | 33.5 x 22.5 x 9 cm |
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Polar Sphere Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 663 |
| Year: | 1891 |
| Size: | 38 x 24 x 9 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 2110 |
| Type: | I |
| Year: | ca. 1895 |
| Size: | 23 x 9 x 4.5 cm |
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Polar Disc Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 1067 |
| Year: | 1896 |
| Size: | 41 x 21.5 x 9.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 13027 |
| Type: | No. 36/II |
| Year: | 1909 |
| Size: | 25 x 9 x 4.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 13763 |
| Type: | No. 35/I |
| Year: | 1909 |
| Size: | 23 x 8.5 x 4.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 13872 |
| Type: | No. 37/III |
| Year: | 1909 |
| Size: | 25 x 9 x 4.5 cm |
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Linear Chart Planimeter
| Marking: | Siemens & Halske / G. Coradi |
| Serial Number: | 15981 |
| Year: | 1911 |
| Size: | 44 x 29 x 13.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 22790 |
| Type: | No. 37/III a |
| Year: | 1914 |
| Size: | 25 x 9 x 4.5 cm |
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Curvimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | - |
| Year: | ca. 1930 |
| Size: | 9.5 x 7 x 3.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich |
| Serial Number: | 34498 |
| Type: | No. 37/III L |
| Year: | 1932 |
| Size: | 26.5 x 9.5 x 5.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich / Eugene Dietzgen Co. N.Y.-CHGO. |
| Serial Number: | 36673 |
| Type: | 1803D |
| Year: | 1941 |
| Size: | 23 x 7 x 4.5 cm |
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Rolling Disc Planimeter
| Marking: | G. Coradi Zürich Switzerland |
| Serial Number: | 6302 |
| Type: | 31-II L |
| Year: | 1956 |
| Size: | 38 x 31 x 14 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich Switzerland |
| Serial Number: | 49962 |
| Type: | 35/I |
| Year: | 1959 |
| Size: | 23 x 9.5 x 4.5 cm |
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Compensating Polar Planimeter
| Marking: | G. Coradi Zürich Switzerland |
| Serial Number: | 50343 |
| Type: | 37aa/III |
| Year: | 1960 |
| Size: | 26.5 x 9.5 x 4.5 cm |
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Checking Disk for Planimeters with Magnifying Lens
| Marking: | G. Coradi Zürich |
| Serial Number: | - |
| Year: | ca. 1935 |
| Size: | 7.6 cm (Diameter) |
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Checking Disk for Planimeters with Magnifying Lens
| Marking: | G. Coradi Zürich |
| Serial Number: | - |
| Year: | ca. 1935 |
| Size: | 9.6 cm (Diameter) |
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