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Antique John Ednie Edinburgh – Induction Coil Physics Electrical Spark Apparatus

Offered for sale is a pair of antique induction coil electrical apparatus manufactured by John Ednie of Edinburgh University, Scotland, probably dating to the late 19th or early 20th century.  Induction coils were widely used in physics laboratories and educational settings in order to demonstrate inter alia electromagnetic induction for experimental/teaching purposes. These examples are mounted on mahogany folding bases and feature: • primary induction coil • brass electrical terminals • adjustable discharge contact • original maker’s plaque The items retains theirs original measuring scale Read More...

Antique Clockwork Electrical Pulse Apparatus by Cambridge Scientific

Offered for sale is an interesting clockwork mechanism that looks to be set up to produce timed electrical pulses – use/application is unknown and the item is untested.   The clockwork movement is from the USA and branded as follows:   Seth Thomas, Thomaston, Connecticut   Note: Seth Thomas (1785–1859) was a pioneering American clockmaker who established a massive manufacturing empire in Plymouth Hollow, Connecticut, which was renamed Thomaston in his honor in 1875. Founded in 1813, the company became a leading U.S. manufacturer of high-quality, affordable clocks, including Read More...

Antique Induction Coil Physics Electrical Apparatus – Educational – Steampunk

Offered for sale is a set of antique induction coil electrical apparatus probably dating to the late 19th or early 20th century.  Induction coils were widely used in physics laboratories and educational settings in order to demonstrate inter alia electromagnetic induction for experimental/teaching purposes. This apparatus is mounted on a mahogany base and features: • moveable induction coils • brass electrical terminals • sliding scale with measurements Such instruments were commonly used in scientific instruction and laboratory demonstrations during the early development of electrical Read More...

SOLD – Microscope accessories: glass trough (#3).

SOLD – Length 3 inches. Height 1.5 inches. Depth 1/2 inch.   Post will be £5.80 U.K.                       £25 U.S.A. Additional items – post free. Read More...

SOLD – Microscope accessories: glass trough.

SOLD – Length 2.5 inches. Height 2 inches. Depth just under 1/2 inch.   Post will be £5.80 U.K.                       £25 U.S.A. Additional items – post free. Read More...

SOLD – Microscope accessories: glass trough.

SOLD – Length 3 inches. Height 2 inches. Depth 1/2 inch.   Post will be £5.80 U.K.                       £25 U.S.A. Additional items – post free. Read More...

Decagonal marine telescope.

Unsigned, circa 1800, measuring 25.5 inches ( 65 cm ) when closed with a non achromatic main lens of 27 mm ( just over an inch ) in diameter. There are sliders to both ends of the telescope. The lenses are damage free; the mahogany barrel free of cracks. Lacquer is still intact. The single brass draw tube is fully retractable and is constructed in three segments. A good, clean example. It comes with a later wooden display stand. Read More...

Small brass compass and case.

A small 1.75 inch ( 44 mm) brass pocket compass with a card dial centrally pivoted. It has a small lever to the side which holds the dial when depressed. The compass is made to stay in its case as there is no ring pull and the inside base is blank. Read More...

C1890 FULLY WORKING LOCKING COMPASS BRASS CASING WITH LID , GOOD COND. 2 in. DIAMETER

NOTHING BROKEN , NO REPAIRS , GOOD CONDITION Read More...

FINE FULLY WORKING COMPASS WITH WOOD SCREW ON LID CASING 2.5 in DIAM., EXCELLENT

GOOD WELL WORKING CONDITION , NOTHING BROKEN , NO REPAIRS. THIS IS REALLY A LOVELY ITEM Read More...

WORKING SMALL WELL HALLMARKED SILVER HALLMARKED COMPASS DATED 1897 by FRANCIS BAKER

GOOD CONDITION, NOTHING BROKEN , NO REPAIRS, FULLY WORKING, VACANT CARTOUCHE, MADE BY FRANCIS BAKER & SONS Read More...

C1850 POCKET LOCKING COMPASS FULLY WORKING WITH CASE HALLMARKED B & S

NOTHING BROKEN , NO REPAIRS, WORKS WELL LEATHER MORROCAN  LEATHER CASE Read More...