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Signature	Maker	Instruments	Comments	Location	References
MARTIN, JOHANN	Germany, 1642-1721, MIM SIM	made a great variety of sundials of very high quality; examples may be seen in many museums including ADL, OXF, NMM, WHI, USNM, DEU, FLO, AUG, LEY, HAK, etc.; also made pedometers and an astronomical clock at MUN.	step-brother of Johann Willebrand; step-uncle to Johann Martin Willebrand; invented the crescent sundial; some of his sundials are signed "Masig"; P. Masig was his agent in London; dated instruments are 1693, 1706 and 1710.	Frankfort; Augsburg.	Bobinger 2; Michel 3; Zinner 1; Hamilton 1; NMM 2; USNM; Engelmann 1; Daumas 1; W. Eckhardt 3; Syndram; Bryden 16; ADL; RSW.
MARTIN, JOHANN	Germany, 1642-1721, MIM SIM	made a great variety of sundials of very high quality; examples may be seen in many museums including ADL, OXF, NMM, WHI, USNM, DEU, FLO, AUG, LEY, HAK, etc.; also made pedometers and an astronomical clock at MUN.	step-brother of Johann Willebrand; step-uncle to Johann Martin Willebrand; invented the crescent sundial; some of his sundials are signed "Masig"; P. Masig was his agent in London; dated instruments are 1693, 1706 and 1710.	Frankfort; Augsburg.	Bobinger 2; Michel 3; Zinner 1; Hamilton 1; NMM 2; USNM; Engelmann 1; Daumas 1; W. Eckhardt 3; Syndram; Bryden 16; ADL; RSW.

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