Mathematisch-mechanisches Institut G. Coradi Zürich

Ott & Coradi (1874 – 1880)

Ott & Coradi Polar Planimeter

Polar Planimeter

Marking: Ott & Coradi Kempten
Serial Number: 7
Year: ca. 1875
Size: 29 x 14 x 5 cm
Ott & Coradi Polar Planimeter

Polar Planimeter

Marking: Ott & Coradi Kempten
Serial Number: 76
Year: ca. 1878
Size: 29 x 14 x 5 cm
Ott & Coradi Polar Planimeter

Polar Planimeter

Marking: Ott & Coradi Kempten
Serial Number: 336
Year: 1883
Size: 35 x 11 x 6.5 cm

Polar Planimeters (until about 1893)

Coradi Polar Planimeter

Polar Planimeter

Marking: -
Serial Number: -
Type: III (Coradi 1882)
Year: ca. 1882
Size: 38.5 x 6.5 x 5.5 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 1172
Type: I (Coradi 1891)
Year: ca. 1890
Size: 26 x 5 x 5 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 704
Type: III (Coradi 1891)
Year: 1888
Size: 38.5 x 5.5 x 5.5 cm

Polar Planimeters (around 1893 – 1900)

Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 2110
Type: I (Coradi/Lang 1894)
Year: ca. 1895
Size: 23 x 9 x 4.5 cm
Coradi Kompensations-Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 1052 (1056?)
Type: II (Coradi/Lang 1894)
Year: 1895
Size: 22 x 8 x 4.5 cm
Coradi Kompensations-Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 3840
Type: III (Coradi/Lang 1894)
Year: 1899
Size: 25 x 8.5 x 4.5 cm

Polar Planimeters (from about 1900)

Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 13763
Type: No. 35/I (Cat. 1915)
Year: 1909
Size: 23 x 8.5 x 4.5 cm
Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 13027
Type: No. 36/II (Cat. 1915)
Year: 1909
Size: 25 x 9 x 4.5 cm
Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 13872
Type: No. 37/III (Cat. 1915)
Year: 1909
Size: 25 x 9 x 4.5 cm
Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 22790
Type: No. 37/III a (Cat. 1915)
Year: 1914
Size: 25 x 9 x 4.5 cm
Coradi Compensating Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich
Serial Number: 34498
Type: No. 37/III L (Cat. 1915)
Year: 1932
Size: 26.5 x 9.5 x 5.5 cm
Coradi Kompensations-Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich Switzerland
Serial Number: 50343
Type: 37aa/III (Cat. 1915)
Year: 1960
Size: 26.5 x 9.5 x 4.5 cm
Coradi Compensating Planimeter

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
Coradi Kompensations-Planimeter

Compensating Polar Planimeter

Marking: G. Coradi Zürich Switzerland
Serial Number: 49962
Type: 35/I (Cat. 1915)
Year: 1959
Size: 23 x 9.5 x 4.5 cm

Special Purpose Planimeters

Coradi Suspended Polar Disc Planimeter

Freely Suspended Polar Disc Planimeter

Marking: G. Coradi Zürich
Serial Number: 254
Year: 1886
Size: 41 x 22 x 9.5 cm
Coradi Polar Sphere Planimeter

Polar Sphere Planimeter

Marking: G. Coradi Zürich
Serial Number: 663
Year: 1891
Size: 38 x 24 x 9 cm
Coradi Scheibenpolarplanimeter

Polar Disc Planimeter

Marking: G. Coradi Zürich
Serial Number: 1067
Year: 1896
Size: 41 x 21.5 x 9.5 cm
Coradi Rolling Disc Planimeter

Rolling Disc Planimeter

Marking: G. Coradi Zürich
Serial Number: 213
Year: 1886
Size: 32 x 17 x 8 cm
Coradi Rolling Sphere Planimeter

Rolling Sphere Planimeter

Marking: G. Coradi Zürich
Serial Number: 537
Year: 1890
Size: 33.5 x 22.5 x 9 cm
Coradi Rolling Disc Planimeter

Rolling Disc Planimeter

Marking: G. Coradi Zürich Switzerland
Serial Number: 6302
Type: 31-II L
Year: 1956
Size: 38 x 31 x 14 cm
Siemens & Halske / Coradi Line Chart Planimeter

Linear Chart Planimeter

Marking: Siemens & Halske / G. Coradi
Serial Number: 15981
Year: 1911
Size: 44 x 29 x 13.5 cm
Coradi Curvimeter

Curvimeter

Marking: G. Coradi Zürich
Serial Number: -
Year: ca. 1930
Size: 9.5 x 7 x 3.5 cm
Coradi Checking Disk

Checking Disk for Planimeters with Magnifying Lens

Marking: G. Coradi Zürich
Serial Number: -
Year: ca. 1935
Size: 7.6 cm (Diameter)
Coradi Checking Disk

Checking Disk for Planimeters with Magnifying Lens

Marking: G. Coradi Zürich
Serial Number: -
Year: ca. 1935
Size: 9.6 cm (Diameter)

Integraphs

Coradi Integraph

Integraph

Marking: G. Coradi Zürich
Serial Number: 29
Year: 1897
Size: 37.5 x 29.5 x 9.5 cm

Coordinatographs

Coradi Coordinatograph

Coordinatograph

Marking: G. Coradi Zürich Switzerland
Serial Number: 54
Year: 1909
Size: 135 x 72 x 21 cm (Carriage)
178 x 14 x 17.5 cm (Rail)
Coradi Detail Coordinatograph

Detail Coordinatograph

Marking: G. Coradi Zürich Switzerland
Serial Number: 210
Year: ca. 1925
Size: 88 x 56 x 44.5 cm

Coradi AG (ca.1960 – 1985)

Coradi Polar Planimeter

Polar Planimeter

Marking: Coradi AG
Serial Number: 2221
Type: Core-Junior LN
Year: 1964
Size: 28 x 12 x 4.5 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: Coradi AG
Serial Number: 4173
Type: Cora-Senior LK
Year:
Size: 31 x 15.5 x 8 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: Coradi AG
Serial Number: 4591
Type: Core-Junior SN
Year: 1966
Size: 28 x 12.5 x 5 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: Coradi AG
Serial Number: 1975
Type: Cora-Senior LK
Year: 1963
Size: 28 x 12.5 x 5 cm
Coradi Polar Planimeter

Polar Planimeter

Marking: Coradi AG
Serial Number: 6086
Type: Cora-Senior SK
Year: 1967
Size: 28 x 12.5 x 5 cm
Coradi Rolling Disc Planimeter

Rolling Disc Planimeter

Marking: G. Coradi AG Zürich
Serial Number: 6700
Type: 31-I-L
Year: 1962
Size: 37 x 30 x 14 cm