These pages are dedicated to early science and technology. Many advances in science depended on improvements in accuracy of measuring devices and on the ability of instruments to extend the range of human observations.
Most scientific instruments are often of vital everyday importance.
Surveyor needs theodolite to build roads and railroads, seaman needs sextant to navigate, doctor needs a microscope. Scientific knowledge and progress is not possible without an appreciation of tools available at any given time. We will gladly answer your questions. If you have following instruments for sale, please e-mail photos, short description and asking price. Brass transit, theodolite, level, inclinometer, graphometer, way wiser, circumferentor, mining dial, solar attachment, solar compass,protractor,pantograph.