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The manufacturer's name on the device

• not specified

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Bürgiho stojanový sextant 

Bürgi

The manufacturer's name on the device

• not specified

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Penter 

Anton Firnsin

The manufacturer's name on the device

• Anton Firnsin
  

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Pyefinch

The manufacturer's name on the device

• PYEFINCH, CORNHILL, LONDON

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Dollond

The manufacturer's name on the device

• Dollond London
  

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Meüréns

The manufacturer's name on the device

• E. Meüréns F´.

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Heliochronometr 

Johan Paulus Fischer

The manufacturer's name on the device

• Johan Paulus Fischer
  

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Viktor Rolčík

The manufacturer's name on the device

• Viktor Rolčík Praha - Vršovice
  

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Srb a Štys

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• Srb a Štys Praha
  

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Amat (Amatér) 

Meopta

The manufacturer's name on the device

• MEOPTA
  

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