Inscription
This metallurgist and brass founder opened one of the world's first photographic studios here in the spring of 1840. His collaboration with chemist Paul Beck Goddard in successful experiments to reduce exposure times made it possible to use the camera in portraiture.
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More markers in Philadelphia
Betsy Ross (1752-1836)
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Founded, 1695. Erection of present building begun in 1727.
Philadelphia Sketch Club
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