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Signature	Maker	Instruments	Comments	Location	References
KOCH, JOHANN 2	Austria, 1755, MIM	Sundial, 1755 = X; Universal Ring Dial = Kühnelt Coll., Innsbruck; Horizontal Sundial = VAA.		Vienna.	Zinner 6; Basserman-Jordan 2.
KOCH, JOHANN 2	Austria, 1755, MIM	Sundial, 1755 = X; Universal Ring Dial = Kühnelt Coll., Innsbruck; Horizontal Sundial = VAA.		Vienna.	Zinner 6; Basserman-Jordan 2.

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