Check the listing for details. Franz Schmidt & Haensch 1870 Saccharimeter. Listed at 375.00 USD. Franz Schmidt & Haensch Berlin is a German company that was founded in 1827 and specializes in the manufacturing of optical and analytical instruments. Throughout its history, the company has been a leading provider of innovative technologies for scientific research, medicine, and industry. This Saccharimeter is a scientific instrument used to measure the concentration of sugar in a solution, typically used in the wine-making industry. It works by measuring the rotation of polarized light passing through the solution, with higher concentrations of sugar resulting in a greater rotation of the light. The use of a saccharimeter allows winemakers to accurately measure the sugar content of their grapes, helping them to produce high-quality wines with consistent taste and alcohol content. This particular set has all of the original tubes and glass measuring instruments, complete in its original beautiful wooden case, item comes with everything seen above in pictures