Other Collectable Scientific Instruments

There is a crack at one point in the tube. Ideal steam punk etc.

Halden's Patent circular slide rule. Halden's "Calculex" with booklet. U.S. £13 " ".

The calculator and its wooden case are in very good condition, see photos, and with the original key. I have replaced the rubber feet.

Original Vintage Walkers Knotmaster Mk111a Ships Log Set Serial No AK8034. In original fitted wooden case. Complete in every way including original instructions, oil can  and spare glass. An original piece with no major damage all intact. An exceptional item which would be a great piece for Nautical Décor. Also included in the sale is a used Walkers Knotmaster Mk111a Electronic Speed Instrument Head which also bears the same Serial No (AK8034) as the Ships Log and I assume that both of these were used in conjunction with each other. Please see photos. Postage to Mainland UK only free with exception of Northern Ireland and Islands and Highlands beyond Glasgow for which buyer needs to cover postage cost.

Engraved, 'Aitchison's Patent, 24883', across the bridge. Lacquered brass construction with a set of lenses at each end. In leather case. U.S. £13 " ".

Ref:No. 9/360. Height: Thousands of ft. Cooke Troughton & Simms Ltd.'. Also, 'Conversion to 10,000 feet. There are a couple of small edge knocks to the sides which can be seen. No case.

Engraved on the back plate, 'Negretti & Zambra, London. Folding Minem. Barton's Patent'. And on one of the draw tubes by the eye-pice, 'Rd. No. 570941. 2525'. These binoculars can be laid flat and the ends turned inwards to the desired position.

It has a small revolving wheel at the end with a serrated edge. 4.5" long, no cracks. U.S. £11 " ".

Marked on the base plate, ROTATING FIELD MODEL. Type 4341. H. Tinsley & Co. London SE 25. No. 38875. The rotating knob has pointers marked, sine, cosine, index, axis. The dial is divided into four 90 degree sections ( P.D.lagging and leading ) with markings indicating cosine power factors,phase angle degrees.

Includes Stainless Steel Marble Stands to present your collection. A stunning set - Our Solar System represented in 10 vibrant marbles depicting the planets including accurate Earth with continents and ice caps. The largest marble in this set is the sun at 22mm diameter, the other marbles ranging between 14-16mm diameter. Please note that the set is not accurate nor to scale but an attractive display piece. Supplied in presentation box, with stainless steel stands and reference card Sun - Marble measures 22mm diameter - a clear marble with textured orange/pink glass fragments. Mercury - In reference to the metal it shares its name with, a solid sphere of carbon steel. Venus - The Green Goddess, a green lustred marble which changes colour depending on the light.

Practically any GM tube will work fine with the unit.

"SESTREL". QUALITY MAKER SESTREL. HENRY BROWNE & SON. HENRY BROWNE & SON Ltd. ALL BRASS TOP WITH OPTICAL GLASS PRISM WHICH MAGNIFIES THE IMAGE. HANDHELD BRASS COMPASS No9088/B. Approx 230mm high including handle and prism.

Small microscope or magnifyer. No cracks to the bone?. U.S. £14 " ".

RARE Antique Lacquered Brass New Pocket Microscope John Browning London c1868-76.

T.G. Co Ltd London. MK lll 1939 Military prismatic compass, No B14493. The box has a signature on top Lt S...... can't quite make out the name. Condition is good for it's age, don't think there is fluid in the case.

This set has the number "T700" embossed into the case. The set appears to be complete even down to the leads for the compasses in a small case. The case opens by pulling two rods out from each side of the lid.

10 cms long x 2.2cms. No cracks. Two fixing holes?. to the bottom. U.S. £15 " ".

Scale is 0-5V at 300 & 600, and 900 & 1200 Hz. Test set is in good, untested condition. Part of my father’s collection. 19.5cm tall x 18.5cm long x 22cm wide.

202 mm high x 151mm wide x 74mm deep.

BRICAL CALCULATOR. Get images that. make Supersized seem small. Unit 1.

As the UK's number one heart charity, the cutting edge research we fund has already made a big difference to people's lives. Support the British Heart Foundation's life saving research. Approx 5cm Tall.

INTERESTING ITEM. See other current lots.

Superb Example of French Scrolled Purse Lorgnette.

AND ONE NEW ISSUE NUMBER 63 WITH A MOON PART. HAVE NOTICED THE BRASS BALL THAT SITS ON TOP OF ONE OF THE MODELS IS MISSING. THIS WILL BE STRICTLY COLLECTION ONLY. DUE TO THE FRAGILE NATURE, AND THE FACT I HAVE NO IDEA HOW TO TAKE APART.

item is in good condition with no cracks to the glass, i am unsure if the item is in working order any information in determining this would be appreciated. happy to answer any questions and add additional photos.  

Orrery For parts sold as seen Collection only. Too heavy (and delicate) to post

It has a serial number of 7493 and also says "TEMP 200".

Fowler's textile caculator in leather case. U.S. £13 " ".

In perfect condirion this professional scientific instrument compliments any student entering the microscopic world. WF10X. DESIGNED AND MANUFACTURED IN THE UK BY BRUNEL A MARKET LEADER IN THIS SECTOR.

Height 27.5cms x 13cms (width) x 13cms (depth). The stamp mark to the inside is for Horne & Thrornthwaite. No cracks or splits. U.S. £23 " ".

Very nice, no warping or splits. U.S. £15 " ".

Beautiful design. Good condition.

INCLUDES THE WOODEN BOX .

AVO Model 7 MkII. I have a 100% record and would like to keep it that way. Resistance ranges at centre scale are 3 to 4%. I have no idea why the service engineer did not at least write these details on the back of the scale plate as was usual.

A wonderful item! This is a model K Otis King calculator, with scales 414 and 423. The calculator is in excellent condition, with no wear and complete functionality. There is only light surface defects on the box, but otherwise it is in good condition. Its accompanying booklet is creased, but this is to be expected given that it is stored rolled up in the box. There are no missing pages and both staples are sound in the spine of the booklet. The box and calculator have matching serial numbers (#A7784)

Aristo Slide Rule Overall good condition Pouch slightly worn Please see photographs

This "Fuller" calculator or slide rule by "Stanley" is in "as found" condition and has not been restored or repaired. The ends and handle of the calculator are wooden, I can't find any chips or cracks to the wood, although there are minor scuffs and scratches. The brass scale is clear and legible and also has "4094 19" imprssed just above the screws. The outer cylinder tube moves up and down and around the inner cylinder smoothly and all of the lettering, numbers and scales are clear and legible. There are no major splits or tears to the paper, however, there is some surface dirt to the inner cyclinder, which could be removed. I have tried to show the condition in the photographs.

Found in the box’s from family house and it works and from the looks of it there are bits missing, but still works fine.

Otis King cylindrical calculator, model "K". Numbered to the end, X3153, patent no 183723, scale no 423. Very nice condition. In fitted cardboard case with pamphlet. U.S. £13 " ".

Exceptional quality French diamond scales and weights in a fitted mahogany box also of superb. With brass pans and a set of eight square weights [1 missing].