~GOOD ROSS No. 1 MONOCULAR POLARISING MICROSCOPE~

~GOOD ROSS No. 1 MONOCULAR POLARISING MICROSCOPE~

$2000 USD + shipping at cost

A good pre-RMS, No. 1 polarising monocular microscope by A. Ross c.1857

Dimensions

25 x 12 x 10 inches (60 x 30 x 25 cm.)

Circa

1857

Maker

Andrew Ross

Country of manufacture

UK and Ireland

Categories: Mineralogy & Gemmology, Office Antiques, Engineering antiques, Natural history, Microscopy

Description

Bearing number 1750, this pre-RMS monocular stands a huge 24 inches tall. Bar limb construction on splayed claw foot, it retains about 80% of it’s original lacquer (most wear is on the foot-see photo). Geared and racked fully rotatable square stage and a substage condenser/polariser, this microscope has limited accessories. 2 C (short and long) and  D eyepieces (looking for A and B although the diameter is odd on these pre-RMS models) and two magnificent objectives (1/4 and 1/12 with correction collars), signed and dated 1856 and 1857-see photos. 

Due to it’s mass, the inclination joint has the Zentmeyer modification of a quarter circle bracket with locking arm. The microscope can fully decline/incline to the horizontal/vertical positions with stability. The large doubled sided 3 inch mirror is spidered but has 90% reflectivity. Working rack and pinion and fine focus ahead of the assembly knurled knob to the rear of the limb.

The glass fronted mahogany case makes this microscope a real showpiece. It measures 25 x 12 x 10 with a shrinkage crack to the rear (stable) and NO provisions for additional accessories i.e. substage accessories or bench condenser. Twin brass carrying handles, functional lock and key. There is a drawer in the base with 20 + slides and a pair of stage forceps (sans full tines).

Shipping will be done in two parts: Case and disassebled microscope sent separately due to mass and glass.

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CA ScientificaOpticae

Scientifica Opticae

Mark Hacking (Scientifica Opticae Inc.) has been an avid collector/dealer for over 30 years. A former Science teacher, he has an innate love for anything natural or mechanical. Specializing in optical (microscopes, telescopes), surveying, medical, weighing and drawing instruments, he is an active participant of the Scientific Instrument Fair in London. Living in Stratford, Ontario, Canada, with his wife and two children; Mark looks forward to meeting as many fellow collectors as possible, and has a worldwide following on eBay (Sciopti).

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