Webster Signature Database - Suggest Correction

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Signature	Maker	Instruments	Comments	Location	References
DRYANDER, JOHANNES	Germany, c.1500-60,		expert instrument designer; "Cylindri usus et canones", 1543, is first known description of a portable cylinder sundial; Johann Eichmann, M.D.		RSW.
DRYANDER, JOHANNES	Germany, c.1500-60,		expert instrument designer; "Cylindri usus et canones", 1543, is first known description of a portable cylinder sundial; Johann Eichmann, M.D.		RSW.

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