CA 1885 N H EDGARTON PHILADELPHIA MARLOYE'S HARP LABORATORY ACOUSTIC DEMO DEVICE

Description

DESCRIPTIONBorn in Paris, trained as an assistant of physicist Felix Savart who specialized in acoustics. Albert Marloye (1795-1874) became a respected instrument maker during the mid-19th century he published numerous catalogs explaining how to utilize his apparatus for multiple experiments and demonstrations. He conceived numerous instruments including Marloye’s Harp and Pan’s Harp. He retired in 1874. He is however widely known as the mentor of renowned acoustic instrument maker Rudolph Koenig.  Fine details include a 12 inch tall tapered and turned vertical column supporting an adjustable 1/8 inch diameter brass rod suspended over mouth of original glass goblet with provision for four 1/2 inch diameter thread suspended wood orb pendulums {Note..one not present though easily replicated}. The tinted chartreuse period 9 inch tall goblet with 5 1/2 inch diameter mouth, 2 1/2 x 1 inch diameter tapered stem and 4 inch diameter base secured with original brass clamps, one with threaded wing-nut clamp for easy removal. All on a fine 13 inch x 5 inch x 1 inch mahogany sub base stamped NH Edgarton Philadelphia. Overall height as photo’d 17.5 inches. Weight 4 lbs.  The stroke of a horsehair bow against the rim of the goblet causes vibrations within the glass, thereby triggering the violent movement of the pendulums.  This simple and most elegant demonstration device was acquired in August of 2018 from the prestigious Smith College for Women 19th century physics lab storage collection . In original aged lacquered brass , not cleaned or polished in any way. Excellent no regrets condition.
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I am slashing the prices on my antique microscopes because I have more coming in this week and still have others to list. Please take advantage right now and help me free up some space. :)
This is an authentic antique circa mid 1800's brass French drum microscope with the original box. These microscopes were imported to the U.S. throughout the mid to late 1800's, and so I am calling it mid century because we really have no way of knowing exactly. The importer is stamped inside the box, but the microscope itself has no brand identifier beyond a logo stamp on the top of the eye piece, as pictured. While many of these were the basic drum scope design, this one includes the attached magnifying glass for dissection.
This scope does have cosmetic blemishes on the brass, as pictured, and the box has a stain in one corner on the outside bottom, where it is unlikely to ever be seen. There are no other significant flaws to note.
Upon inspection of slides, with respect to the eye piece and objective, the image was clear and free of any visible blemishes. With respect to the magnifying glass, while it is not flawless, the glass has very minimal blemishes and is still relatively clean and clear, making this a fully functional piece for display and use.
Shipped with USPS Priority Mail.