Metronome System Paquet 1815 and Johan Maelzel 1846

Metronome system Johan Maelzel (1772-1838) from the early 1900s. This is an instrument used to measure the tempo of music; the sound of the pendulum accurately signals the speed of ...

Tellurium, i.e., mechanical/electrical model representative of the solar system, made of metal with green and gray hammered paint, lithographed tin globe, plastic Moon, and metal bas...

Double front and back lithograph depicting Portovenere and Piazza dei Miracoli in Pisa, dating back to the thirties. Very good condition. Cm 21.5 x 27.5.  

Large spirit level made of wood, brass and glass manufactured in the second half of the nineteenth century. Excellent condition fully functional. Measures: Length 35.5 cm, width 4 cm...

Crystal and chromed metal glass for travel or hunting, early 1900s, with leather case. Nightcap, the last drink before farewell. Good condition. Case size: 25.5 cm, diameter 5 cm. S...

Sand hourglass, brass container with circular base and tapered columns in the center and blown glass cruet. Duration 45 minutes. English manufacture of the early 1900s. Measures height 20 cm, diameter 11.5 cm – 7.9x4.5 inches. Shipping is insured by Lloyd's London; our gift box is free (look at the last picture). In Greece, the use of hourglasses was introduced in 325 BC, in the form of stone containers with a truncated cone shape that let water flow out of a hole in the bottom at a constant rate. Other hourglasses were cylindrical or cup-shaped and were slowly filled by a constant flow of water. Some signs on the inner surface of the container indicated the passage of hours as the liquid level rose. Another version consisted of a metal container with a hole in the bottom which, placed to float in a larger container, sank in a given time. This system remained in use until the 20th century in North Africa. These clocks were typically used at night, but not during the day, when the more accurate sundials were available. In the first half of the III century BC. Ctesibius transformed the hourglass into the more complex water clock. Various mechanisms were introduced by him and others to increase the precision of the watch by regulating the pressure and keeping the flow of water constant, but also to offer a better display of the time. The most advanced specimens could ring bells or gongs, open windows to display images, or had movable indicators, dials or representations of celestial bodies. Among the designers of watches...

Fraeijlemaborg.' (Fraeylema Castle.) This Castle is situated in the province of Groningen in Slochteren. It was built around 1500 and its first known occupant was Remmert Fraeylema. ...

Antique map titled 'Denmark'. Old map of Denmark. This map originates from 'A New Universal Atlas Containing Maps of the various Empires, Kingdoms, States and Republics Of The World ...

Antique map titled 'Sweden & Norway'. Old map of Sweden and Norway. This map originates from 'A New Universal Atlas Containing Maps of the various Em...

Het huis Rechteren.' (Rechteren Castle.) This Castle is situated in the province of Overijssel in Dalfsen. The castle was built in the 14th century by Herman van Voorst. Other well k...

Antique map titled 'Asie'. Original antique map of Asia. Source unknown, to be determined. Artists and Engravers: Alexandre Vuillemin (1812-188...

Antique map titled 'Holland and Belgium'. Old map of the Netherlands and Belgium. This map originates from 'A New Universal Atlas Containing Maps of the various Empires, Kingdoms, St...