Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
LEVI BEN GERSON Spain; France, 1288-1344, astronomer and mathematician; invented the Jacob or cross-staff, the transvesal scale for subdividing angles and the camera obscura; author. Catalonia; Bagnols; Perpignan. B. Goldstein 1, 2, 3 and 4; DSB; Daumas 1; Michel 2; A.J. Turner 10.

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