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Instruments
Drafting Tools
Planimeters
Integrators
Pantographs
Coordinatographs

Makers
Aarau's Drafting Instruments Industry
Hommel-Esser Aarau
History
Serial Numbers and Markings
Catalogs and Price Lists
Various Documents
Kern & Co. Aarau
History
Divider Patterns
Markings and Logos
Advertising
Catalogs and Price Lists
Manuals
Various Documents
Patents
Gysi & Co. Aarau
History
Catalogs and Price Lists
Various Documents
J. Bossart Suhr-Aarau
History
Catalogs and Price Lists
Patents
Alfred J. Amsler & Co.
History
Serial Numbers
Catalogs and Price Lists
Manuals
Various Documents
Patents
Gottlieb Coradi
History
Serial Numbers
Betschmann's Aerovue Maps
Catalogs and Price Lists
Manuals
Commercial Documents
Various Documents
Patents
Hünenberger-Murbach
History
Catalogs and Price Lists
Manuals
Jakob Goldschmid
History
Kaspar Wetli
History
Rack Railway System
Manuals
Various Documents
Various

Gallery
Hommel-Esser Aarau
Drafting Set
Proportional Divider
Pocket Compass
Protractor
Drafting Set
Drafting Set
Beam Compass
Beam Compass
Lithographic Drafting Set
Kern & Co. Aarau
Jakob Kern (1819 - 1885)
Drafting Set
Drafting Set
Drafting Set
Drafting Set
Drafting Set
Spring Bow Compass
Caliper
Kern & Cie. (1885 - 1920)
Drafting Set
Lithographic Draftiong Set
Drafting Set
Tubular Compass
Pocket Compass
Planimeter (Alfred J. Amsler & Co.)
Drafting Set
Drafting Set
Dotting Pen
Road Pen
Proportional Divider
Planimeter (Alfred J. Amsler & Co.)
Drafting Set
Kern Aarau (1920 - 1959)
Drafting Set
Drafting Set
Drafting Set
Hatching Apparatus
Drafting Set
Drafting Set
Drafting Set
Spring Bow Compass
Dotting Pen
Kern Swiss (1959 - 1990)
Drafting Set
Drafting Set
Drafting Set Prontograph
Drafting Set
Drafting Set
Presentation Case
Geiser Universal
Gysi & Co. Aarau
Drafting Set
Drafting Set
Drafting Set
Drafting Set
Road Pen
Spring Bow Compass
J. Bossart Suhr-Aarau
Drafting Set
Drafting Set
Alfred J. Amsler & Co.
Jakob Amsler (1856 - 1888)
Polar Planimeter
Polar Planimeter
Polar Planimeter
Pantograph Planimeter
Polar Planimeter
Polar Planimeter
Amsler & Co. (as of 1888)
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Disc Planimeter
Compensating Planimeter
Compensating Planimeter
Compensating Planimeter
Disc-Knife Planimeter
Compensating Polarplanimeter
Radial Planimeters
Radial Planimeter (Durand-Amsler)
Radial Square Root Planimeter (Kent)
Radial Square Root Planimeter
Integrators
Integrator
Integrator
Integrator
Small Pantograph
Gottlieb Coradi
Ott & Coradi (1874 – 1880)
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Planimeters (1880 - ca. 1960)
Polar Planimeter
Polar Planimeter
Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Compensating Polar Planimeter
Checking Disk
Checking Disk
Special Planimeters (1880 - ca. 1960)
Rolling Disc Planimeter
Polar Disc Planimeter
Rolling Sphere Planimeter
Polar Sphere Planimeter
Polar Disc Planimeter
Chart Planimeter (Siemens & Halske)
Curvimeter
Coradi AG (ca. 1960 - 1985)
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Planimeter
Various Instruments
Integraph
Coordinatograph
Detail Coordinatograph
Hünenberger-Murbach
Polar Planimeter
Polar Planimeter
Polar Planimeter
Polar Planimeter
Jakob Goldschmid
Proportional Divider
Polar Planimeter
Kaspar Wetli
Orthogonal Planimeter (Starke)
Various
Transvere Map Scale (F. Kuhn)
Ellipsograph (Pat. H. Sieber)

Literature
Mathematical Instruments
Drafting Tools
Planimeters
Integrators
Online References

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