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Signature	Maker	Instruments	Comments	Location	References
GRASSI AND FONTANA	England, c.1830, PHIM	Wheel Barometers = X, Soth. 11/26/81; Barometer = Vermont Hist. Soc., Montpelier.	see also "Bulla, Grassi and Fontani."	Bartholomew Street West; 134 Fore Street; both in Exeter.	Goodison 1; Bell 2; USNM.
GRASSI AND FONTANA	England, c.1830, PHIM	Wheel Barometers = X, Soth. 11/26/81; Barometer = Vermont Hist. Soc., Montpelier.	see also "Bulla, Grassi and Fontani."	Bartholomew Street West; 134 Fore Street; both in Exeter.	Goodison 1; Bell 2; USNM.

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