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Signature	Maker	Instruments	Comments	Location	References
PIETER, JOHANNES SINT, BONGIANI & COMP.	Holland, c.1783, PHIM	Barometer = P.C. (1912).		Utrecht.	Mörzer Bruyns 2.
PIETER, JOHANNES SINT, BONGIANI & COMP.	Holland, c.1783, PHIM	Barometer = P.C. (1912).		Utrecht.	Mörzer Bruyns 2.

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