M.S. Rau Scientific Instruments

Brass Compound Microscope in Case Ernst Leitz Dated 1897 This rare late 19th-century compound microscope was crafted by the renowned optical firm Ernst Leitz GmbH of Wetzlar, German...

This exceptional Georgian barometer by the leading London instrument-maker John Bennett strongly reflects the prevalent furniture style and archite...

Pair of Terrestrial and Celestial Globes G & T London 20th Century This extraordinary pair of 32-inch terrestrial and celestial globes, crafted by G & T London, pays homage to the m...

Swiss Enamel and Gold Telescope Circa 1820 This extraordinary telescope exemplifies a rare union of 19th-century Swiss scientific innovation and artis...

This exceptional English stick barometer is a classic example of these intriguing meteorological instruments. Crafted by the esteemed Worthington & All...

Scientifically advanced and exquisitely crafted, this rare 19th-century gold and enamel Swiss telescope is an item of exceptional luxury. The Swiss cre...

This intriguing item is almost certainly a Holland Circle by German scientific instrument makers Baumann & Kinzelbach. The Holland Circle, sometimes referred to as a Dutch Circle, was used in land surveying and is a precursor to the theodolite, an optical instrument for measuring angles. Baumann and Kinzelbach were based in Stuttgart, Germany, and in addition to crafting surveying instruments...

An invaluable addition to the 19th century home, this domestic medicine chest contained nearly everything needed to nurse a member of the house...

This amazing and extremely rare Bavarian Biedermeier-period pharmacy balance stand would have been at home at any apothecary’s shop during the mid-19th century. Crafted of walnut with bold giltwood accents, this stand holds eight separate sets of balances with brass beams and pointers, and weighing pans made of Horn, brass and porcelain. The balances measure out varying sizes; the largest is capable of measuring up to 500 grams, while smallest weighs up to 5 grams. Such balances would have been essential tools in the practice of compounding, or creating customized medications to suit a specific patient's needs. The delicate porcelain scales even indicate what they were used to weigh: one set is marked “Jodoform,” or iodoform, a disinfectant and antiseptic once used to treat wounds, and the other is marked “Venena,” which is Latin for “poisons.” Each scale also exhibits stamps indicating that they have been tested for accuracy. It is extremely rare to find such a large array of scales, especially those in such wonderful condition, in one collection. This intriguing piece is a must for any medical antiques enthusiast. The units of measurement in which apothecaries worked were often minute: grains, scruples, drams and ounces. As they were typically used to measure very small amounts of ingredients, apothecary and analytical balances...

Considered the first step into the world of modern photocopying, the copying machine was among the first widely used devices to successfully produce an ex...

An essential tool in the creation and finishing of furniture, this 19th-century English ornamental lathe is an object of beauty in and of itself. The extraordinary machine...