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Proportional Divider
| Marking: | J. Goldschmid in Zürich |
| Year: | ca. 1870 |
| Size: | 25.5 x 3.5 x 2.5 cm |
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Transverse Map Scale
| Marking: | F. Kuhn Lucerne |
| Year: | ca. 1900 |
| Size: | 30 x 4 cm |
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Measuring Compass (Patent Bartolome April)
| Marking: | Patent CH 82265 |
| Year: | ca. 1920 |
| Size: | 13 x 3 x 1 cm |
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Elliptical Compass "RECORD"
| Marking: | "RECORD" Ellipsen & Kreiszirkel |
| Year: | ca. 1930 |
| Size: | 13 x 12 x 2.5 cm |
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Elliptical Compass
| Marking: | Ellipsenzirkel - Patent angemeldet |
| Year: | 1957 |
| Size: | 25.5 x 8 x 2 cm |
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Elliptical Compass "ELLIPSODEM"
| Marking: | Racher & Co. AG Zürich |
| Year: | ca. 1964 |
| Size: | 27 x 18.5 x 9 cm |
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