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Signature	Maker	Instruments	Comments	Location	References
HEIDEN, CHRISTIAN	Germany, 1526-76, MIM	Astrolabe, 1552, (ICA-553); Globes, Sundials, Quadrants, Pillar Sundials, Diptych Sundials, Skaphes, etc.; examples may be seen at OXF, DRE, NUR, KAS, KEN, VIE, etc.	invented a new form of level.	Nürnberg.	Zinner 1; Gunther 1 and 2; Abeler 1; Michel 1 and 2; Baillie 1; Drechsler 2; Behaim Cat.; Lubke; ICA 2; Price 1; Maurice; Lunardi; Gouk 1; RSW.
HEIDEN, CHRISTIAN	Germany, 1526-76, MIM	Astrolabe, 1552, (ICA-553); Globes, Sundials, Quadrants, Pillar Sundials, Diptych Sundials, Skaphes, etc.; examples may be seen at OXF, DRE, NUR, KAS, KEN, VIE, etc.	invented a new form of level.	Nürnberg.	Zinner 1; Gunther 1 and 2; Abeler 1; Michel 1 and 2; Baillie 1; Drechsler 2; Behaim Cat.; Lubke; ICA 2; Price 1; Maurice; Lunardi; Gouk 1; RSW.

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