The record of the celebration of the two hundredth anniversary of the birth of Benjamin Franklin : under the auspices of the American Philosophical Society, held at Philadelphia for promoting useful knowledge, April the seventeenth to April the twentieth, A.D. nineteen hundred and six.

Licence: Public Domain Mark

Credit: The record of the celebration of the two hundredth anniversary of the birth of Benjamin Franklin : under the auspices of the American Philosophical Society, held at Philadelphia for promoting useful knowledge, April the seventeenth to April the twentieth, A.D. nineteen hundred and six. Source: Wellcome Collection.