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Subject
- Astronomical instruments2
- Astronomy--Early works to 18002
- Optical instruments2
- Astronomical instruments--Great Britain--19th century1
- Astronomy--Charts, diagrams, etc.1
- Carl-Zeiss-Stiftung Jena1
- Constellations1
- Lenses1
- Newton, Isaac, Sir, 1642-17271
- Profit-sharing1
- Reflecting Telescopes1
- Spherical astronomy1
- Stars--Atlases1
- Troughton & Simms, Ltd.1
- Zeiss, Carl, 1816-18881