101Charles Willson Peale to Jacob Wagner, 22 July 1804 (Abstract) (Madison Papers)
22 July 1804, Museum. “I was at New York preserving the Fishes of that Market for my Museum, when your letter respecting the Polygraph was received by my Son Rubins, who has not been inatentive to that business, and by this time one would have been sent, but the workmen had been imployed in finishing one, like the Presidents, ordered for Mr. John Armstrong to be sent without delay to New York....