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Signature	Maker	Instruments	Comments	Location	References
BOS, JOHANNES	Belgium, fl.1591-1623, MIM	Astrolabe, 1597 = ADL-M33A; Calculating Device, 1623 = Soth. 3/11/52.	son of Jacob Bos, cartographer; he made several astrolabes dated between 1591-97; some are dated "Marti 24 1597"; these last seem to be copies, in a smaller size, of ADL-M33A, including HAR, WHI, etc.	Antwerp; Rome.	Engelmann 1; Maddison; Price 1 and 5; Zinner 1; Michel 3; Rooseboom 1; Gunther 1; Hollands Glorie; ADL; RSW.
BOS, JOHANNES	Belgium, fl.1591-1623, MIM	Astrolabe, 1597 = ADL-M33A; Calculating Device, 1623 = Soth. 3/11/52.	son of Jacob Bos, cartographer; he made several astrolabes dated between 1591-97; some are dated "Marti 24 1597"; these last seem to be copies, in a smaller size, of ADL-M33A, including HAR, WHI, etc.	Antwerp; Rome.	Engelmann 1; Maddison; Price 1 and 5; Zinner 1; Michel 3; Rooseboom 1; Gunther 1; Hollands Glorie; ADL; RSW.

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