| Title | Vrijzwevende bolpoolplanimeter door G. Coradi |
| Object name | poolplanimeter |
| Inventory number | 2000.0162.GEO |
| Dating | 1890 – 1915 |
| Maker | G. Coradi (producent) |
| Dimensions | 85,0 mm (h) x 317,0 mm (b) x 384,0 mm (d) |
| Material | |
| Place of manufacture | Zürich, Zwitserland, EU |
| Description | Vrijzwevende bolpoolplanimeter door G. Coradi, voor oppervlaktebepalingen van percelen en dwars- en lengteprofielen. |
| Documentation | Zeitschrift für Vermessung 1888 blz 176.
J.Y. Wheatley, "The polar planimeter and its use in engineering calculations...", 1903 [zie online referentie] |