This is Portrait of Paul Revere by John Singleton Copley from 1768.
Paul Revere lived 1734-1818.
Here is how this painting is described in the book American Art and Architecture by Michael J. Lewis—
“Here was a new kind of painting. Instead of aristocratic subjects in settings of leisure, Copley portrayed merchants and artisans who were not ashamed of their status or their manual labor—Aristocrats of commerce. Revere holds one of his silver teapots in one hand as he prepares to incise it with decoration while the other holds his head, as if to suggest that he earns his livelihood by both his hands and his head.”
Despite this painting, Copley was no friend of the American Revolution. He left America in 1774 and settled in London.
Click here for some information on Copley. Take a look at his self-portrait—Just seeing it will clue you in on his feelings about the revolution.