Buy a sextant

[Douglas Denny]

Can you tell us what SNO-T stands for?  It probably has provided some laughs for a name in English speaking countries.

Thanks for the excellent photos of your pocket sextant.  They have always been a curiosity not knowing how or where they were used.  Can you tell us the dimensions?

Roland

The definitive expert on sextants of all types (probably in the world) is Bill Morris, a retired medical doctor who lives in New Zealand.  A most pleasant and kindly man who is incredibly knowledgeable on anything to do with sextants and suchlike optical  instruments.
To quote from his book  "The Nautical Sextant" :- 

COPY:-

SNO-T:-  Sextan Navigacionnyi Osvetitelem T  (Tropicalised).
 
Made in Leningrad with inputs from Freiberger Prazisionsmechanik, and is a derivation of the latter's sextants though rather more heavily built and with a slightly smaller radius.
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Although C. Plath was based in Hamburg,  on account of heavy bombing in WW2 they also had factories in East Prussia and Poland.   At least some of C. Plath's factory and machinery appears to have been taken over by the USSR at the end of the war, and sextants indistinguishable except in very minor detail from wartime alloy sextants continued to be produced into the 1960s as the SNO-M:   "Sextant for Navigation with Illumination - Maritime".
This series was followed by the USSR's  SNO-T.

ENDS.


You can read his "blog" here, it is very interesting indeed :-

https://sextantbook.com/blog/
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The Troughton and Simms Box sextant is  75mm diameter (about 3")  by 40mm (about 1 and1/2") deep.
In its leather case the size is :-   85mm x 55mm

The small telescope is 75mm long about x4 magnification and 12mm aperture.

If wanted the box sextant has a sliding brass sleeve with a pinhole in the sighting hole, which can be used instead of the telescope for direct viewing,  which makes finding an unknown object easier than the telescope with its narrow field of view.

Douglas.