Blown glass scientific instrument, Italy 1900.

Blown glass scientific instrument to evaluate the expansion of the liquids with the warmth. Italy circa 1900.

Blown glass scientific instrument. A fine example of Crookes tube with Maltese cross, the precursor of the cathode tube. It demonstrates the rectilinear m...

A botanic didactical specimen, depicting a Vitis Vinifera flower, pale yellow green color made out of papier mache, plaster and wood hand painted. Extremely detailed. Paravia Milano,...

A rare example of a botanical maquette for didactic use by Professor T. Ferraris, depicting a (natural) strobilus and a scale with ovules (about 12 times enlarged) of Spruce (Picea e...

Induction electrification demonstrator instrument. By putting two electrically neutral spheres in contact with each other, when a charged wand is approached, it is possible to notice...

Scientific tool for demonstrating and assessing the refraction of light. Constructed in boxed metal with a square section, it consists of a horizontal...

This is an antique stick barometer. An English, walnut scientific instrument with thermometer by Negretti & Zambra, dating to the late Victoria...

Gaertner spectroscope, 1930s scientific instrument. The spectroscope is an instrument used in chemistry and physics to observe and analyze the electromagnetic radiation emitted by...

Antique print titled 'A curious Instrument which shews the Hour of the Day (..)'. Print of a scientific instrument. This print originates from 'The Gentleman's Magazine'. Artists a...

A metal decoration from 20th century Czechia. A cast base, along with metal tubes, bands, and adjustable bolts creates the image of a scientific object, whose purpose remains opaque....

Box containing 6 dismounplate geometric solids of oak wood, height 20 cm, in their original wooden box complete with illustrative leaflet for calculating surfaces and volumes. Made for educational purposes for schools by Antonio Vallardi publisher in 1963. Box cm 24 x 40 H 12 cm. The origins of the publisher Vallardi date back to 1750 when founder Francesco Cesare (1736-1799) acquired a small craft in the heart of old Milan. In the early nineteenth century, the publishing house was noted for the production of works of art, geography and science, including a "Tour of Italy" which took twenty-two printings between 1819 and 1835. The complete works of various maps and directions for travel, including timetables and fares for transportation of the time, can be considered the first modern tourist guide. The firm "Vallardi" was born in 1843 and the company became industrial, with the opening of branches on national...

This is a large vintage pantagraph. An English, brass scientific mapping instrument, dating to the mid-20th century, circa 1950. Fascinating scale and mechanical interest Displays a...