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Astronomical instruments
2
Optical instruments
2
Astronomical instruments--Great Britain--19th century
1
Astronomy--Charts, diagrams, etc.
1
Astronomy--Early works to 1800
1
Carl-Zeiss-Stiftung Jena
1
Profit-sharing
1
Spherical astronomy
1
Stars--Atlases
1
Troughton & Simms, Ltd.
1
Zeiss, Carl, 1816-1888
1