Webster Signature Database - Suggest Correction

Signature Maker Instruments Comments Location References
CLARK, ALVAN USA, 1804-87, OIM the most notable American telescope maker of the nineteenth century; many of his lenses are still in use in modern mountings; tube and mounting 18.5" (1863) = ADL-G33 & L35. Prospect Street (pre-1860); Henry Street (1860); both in Cambridge , Mass. D.J. Warner 1; DSB; ADL; RSW.

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