Mathematical Instruments
Mechanical Instruments for Drawing, Measuring and Integrating
Drafting Instruments
Calculating Discs and Drums
Alfred J. Amsler & Co.
Gottlieb Coradi
Haag-Streit
History
Catalogs and Price Lists
Manuals
Various Documents
Patents
Hünenberger-Murbach
Jakob Goldschmid
Kaspar Wetli
1858-2008. 150 Jahre Haag-Streit. Köniz (2008).
