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Signature	Maker	Instruments	Comments	Location	References
COPERNICUS, NICHOLAS	Poland; Italy; Poland, 1473-1543, MIM	Wall Sundial, pre-1512 = Olsztyn Castle.	author; noted astronomer who proposed a heliocentric theory; he also made an armillary sphere and a quadrant.	Torun.	Zinner 1; Polish Inventory; DSB; etc.
COPERNICUS, NICHOLAS	Poland; Italy; Poland, 1473-1543, MIM	Wall Sundial, pre-1512 = Olsztyn Castle.	author; noted astronomer who proposed a heliocentric theory; he also made an armillary sphere and a quadrant.	Torun.	Zinner 1; Polish Inventory; DSB; etc.

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