JOHN QUINCY ADAMS, circa 1860line and stipple engraving Unframed. This image depicts John Quincy Adams (1767–1848), the sixth president of the United States, who served from 1825 to 1829. The artwork is a line and stipple engraving created by George Parker. The engraving is based on a portrait by the artist Marchant. Beneath the portrait is a printed facsimile of Adams's signature. Image: 6.5 x 5 inches; sheet: 10 x 7.25 inches $70-110