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25 Aug

WWII TOKO 15 x 80 Japanese naval binoculars

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A pair of WWII TOKO 15 x 80 binoculars on a very rare period spotter’s 360⁰ mount. Binoculars marked: 15 x 4⁰  TOKO No 1 Serial number: 1 60 degree inclined oculars, with Amici type roof prism. 15 times magnification, through 80 mm objective lenses.   TOKO (Tokyo Kogaku) the Tokyo Optical Company founded in 1932. For more photographs please see our website: https://www.hatchwellantiques.co.uk/optics/binoculars/toko-15-x-80-bincoulars-detail   Read More...
13 Apr

NIKKO 25 x 80 monocular, circa 1942.

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A WWII Nikko 25 x 80 military monocular, circa 1942. 25 times magnification, 2° field of view. With extending sunshade and lens cap. Number: 1834. Weight: 2.7 Kgs. Read More...
03 Feb

TOP CONDITION JAPANESE KOMAI OTOJIRO SPECTACLES CASE, GOLD IN LAY, THE MOST RENOWNED MAKER IN JAPAN

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THIS CASE IS IN EXCEPTIONALLY FINE CONDITION, WITH SPRING CLOSURE. OTOJIRO ( 1842 – 1917 )  THIS CASE IS C 1890. KYOTO SEAL , 24 CT. GOLD INLAY.  CONTEMPOARY PINCE NEZ INCLUDED. BEST QUALITY Read More...
14 Nov

CHEMICAL ENGINEERING SLIDE RULE

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CHEMICAL ENGINEERING SLIDE RULE, Japanese, c. 1960, signed “Hemmi, Japan, No. 257.” The 12-1/2″ (32 cm) long rule is made of laminate over bamboo, metal bound, and fitted with double-sided sliding glass cursor. The two sides of rule and slider are divided with a total of 23 scales, including gauge marks for determination of atomic and molecular weights, temperature, conversion scales, pressure unit conversions, molar / weight / volume fractions, adiabatic compression and expansion, etc. In addition there are Read More...
08 Sep

JAPANESE LACQUERED TELESCOPE

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JAPANESE LACQUERED TELESCOPE, c. mid-19th century, the rolled card and wood tubes heavily lacquered in black and rust, with gilt stamped decoration. It opens from 14″ to 38″ (36 to 97 cm) on three drawtubes, the tubes slightly tapered for rigidity when fully open. The eye surround is turned horn, and the optics consist of a two-element eyepiece system plus a singlet objective mounted between card disks and set behind a brass aperture which stops down the 2″ wide Read More...
08 Jul

JAPANESE “JOKOBAN” INCENSE CLOCK

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JAPANESE “JOKOBAN” INCENSE CLOCK, Edo period, c. 18th century. This handsome timekeeper is constructed of a beautifully grained and stained light weight wood (probably paulownia or cryptomeria) and measures 11-3/8″ (29 cm) square by 15-5/8″ (40 cm) tall. The lower section has attractive lozenge-shaped cutouts around the base, and a large matching drawer for tools and accessories. The upper section has a square wooden burning “pan” surmounted by an open wooden latticework cover formed as an 8 x 8 Read More...
14 Mar

Dr. Komoto’s Ophthalmoscope

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A good example of Dr. Komoto ophthalmoscope, cased and in excellent condition noting the absence of one of two reversing lenses–see third image. It was invented by Dr. Jujiro KOMOTO. The Japanese Ophthalmology Society site notes : After studying for several years in Germany, Jujiro KOMOTO (1859-1938) returned to the Tokyo Imperial University and became the very first Professor of Ophthalmology in Japan. Komoto also produced the three-volume Textbook of Ophthalmology, the first comprehensive textbook on the subject to be written Read More...
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