Other Archives - Page 5 of 18

Compound Microscope and Accessories, Likely Dutch, c. 1790, Modified During the 1830s’ to become achromatic

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This is a very fine example of a large tripod-mounted Dutch microscope from the early 19th century. This type of microscope, a development of the Dellebarre type, is never signed, but we know some earlier examples of box-mounted and datable from the late 18th century. The present example is very similar to one preserved at Oxford (inventory inv.41738: https://www.hsm.ox.ac.uk/collections-online#/item/hsm-catalogue-6719 ) and described as Dutch. The present example was modified during the 1830s with the addition of an early achromatic Read More...

29 May

A very rare orrery or tellurium by Paravia in Torino, late 19th Century

By Eppursimuove

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This is a very rare example of an Italian orrery or tellurium made by Paravia in Torino from the late 19th Century or from the very early 20th Century. The large square-base in wood contains the mechanical movement and supports the months and seasons dial made in enamel. A long arm supports the earth and its little moon. The candlestick and its reflector are lacking. This type of square-base tellurium is rarer than the Felkl-type example, even more rare signed by an Italian Read More...

29 Apr

A wall mounted wet and dry bulb thermometer set or hygrometer

By Early Science

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For sale, a wall mounted wet and dry bulb thermometer set or hygrometer in good working order It is now more commonly dubbed, the wet and dry thermometer relating to the comparison of two thermometers, one with a wet bulb and the other dry. This is essentially the same as Mason’s pattern where one thermometer is kept wet by means of a water soaked sock covering one bulb and the other kept dry. The evaporation of water from the sock Read More...

29 Apr

The only sector compass forming a caliber made by Johannes Maccarius dated 1691 known

By Galerie Delalande Paris

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Exceptional sector compass forming a caliber by Johannes Maccarius. This brass compass/caliper is made up of two arched legs ending in steel spikes. Note that the points of this compass are very special because they have a double function: that of a classic dry-point compass and that of a caliber with its very small points arranged perpendicularly. The upper part of the compass, octagonal in shape, ends in a ball head. At the base of this part, there is an arc Read More...

29 Apr

Rare brass surveyor’s square in its case, signed Dominicus Lusuerg F. Romae 1724

By Galerie Delalande Paris

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Rare brass surveyor’s square in its case, signed “Dominicus Lusuerg F. Romae 1724”, case marked G  A. Rome, Italy, 1724. Brass surveyor’s square of a spherical shape with 8 slots ending in a turned knob. The tubular base allows it to be attached to a surveying stand which was usually a wooden stick. The signature “Dominicus Lusuerg F. Romae 1724” is engraved on top of the sphere just above the slots. The turned wooden case opens in two parts Read More...

29 Apr

Exceptional Holland Circle by Francis Van Dieghem made in Brussels circa 1684

By Galerie Delalande Paris

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This holland circle, also called simple theodolite or circumferentor and characteristic of the 17th century, is an extremely rare instrument. Indeed, it is the third known holland circle from Francis Van Dieghem. It is also one of the rare Flemish theodolites from the 17th century with its characteristic Flemish shape like the early models known from Damery or Coignet. Moreover, all the scales are very well engraved and quite accurate, which is also a characteristic of renowned Flemish workshops. Read More...

29 Apr

Narwhal cane made in Greenland first part of 19th century.

By Galerie Delalande Paris

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Narwhal cane with square-shaped handle in walrus ivory, whalebone ring. Very nice spiral and natural patina. Dimension: length of 90 cm. Greenland first part of 19th century. Read More...

09 Apr

~RARE INDO-PERSIAN APOTHECARY SCALES IN SILVER~

By ScientificaOpticae

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An outstanding set of apothecary scales entirely constructed of solid coinage silver. Hard to date but certainly Georgian in construction with push button catch and shaped hinges (entirely hand riveted) with green baise liner and leather outer covering. This set is extensive with a 12 cm. chiselled beam, ornate gallows and indicator, silver chains to the 4 cm. pans, engine turned storage container for 30 weights (some stylised, all of equal weight), elaborate ladle/cup for liquid measures, a tamper and Read More...

08 Apr

Very large dividers in brass and steel made in the first part of the 17th century

By Galerie Delalande Paris

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Very large dividers in brass and steel, so-called “ball head” model. The shape of this scientific instrument is typical of a Flemish work early 17th century Dimensions: length 39.5 cm x diameter 2.6 cm. Flanders dating from the first half of the 17th century (1620/1640). Read More...

04 Mar

18th century Neuro surgical set.

By Van Leest Antiques

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Italian probably Bréscia 18th century, Neuro surgical set. This set is contained in its original (32 x 28 x 7 cm) fitted wood case and lined in green velvet and chamois leather lid, the case with brass hinges and two brass hooks. Present is a complete trepanation set of polished steel tools with turned Ivory handles. Two different trepanning drills included three cutting trephines of different diameters, each with central pin; two head perforator; foliate drill; elevator raspatory; four Read More...

23 Feb

~LOT OF SEVEN CAMERA LUCIDAS/FILTERING EYEPIECES FOR MICROSCOPES~(AMENDED)

By ScientificaOpticae

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A fine lot of camera lucida/eyepiece filters for monocular microscopes. One marked Watson and Son, the rest unbranded. Typical 25 mm. ID except the small, brass European model with ID of 22 mm (bottom row). Sold as a lot or individually, for a premium. No faults/chips with any of the lucida prisms or filters. Age range 1860-1900. Bright brass and enamelled brass models. Drawing aids for monocular microscopes. All in perfect cosmetic and operational order. Also included is a Respail Read More...

15 Feb

Fialka M 125 Russian electromechanical cipher machine

By Florin

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M-125 Fialka-electromechanical wheel-based cipher machine USSR rotor-based cipher machine M-125, codename Fialka (Russian: ФИАЛКА), was an electromechanical wheel-based cipher machine, developed in the USSR shortly after WWII. It was first introduced in 1956 and soon became one of the favorite machines of the Warsaw Pact and some allied nations, such as Cuba. The machine is similar to the American SIGABA, the KL-7 and, to a lesser extend, the Enigma. For this reason the machine is sometimes referred to as the Russian Read More...