Samuel Adams by George Graham after John Johnston, c. 1795, mezzotint on paper, from the National Portrait Gallery - NPG-7600020B 1, John Johnston, circa 1795

Samuel adams by george graham after john johnston, c. 1795, mezzotint on paper, from the national portrait gallery which explicitly released this digital image under the cc0 license. (https://npg. Si. Edu/object/npg_npg. 76. 10). Date: circa 1795.