1917 Philadelphia Mint Superintendent Adam Morton Joyce Plaque. Bronze. Mint State. 38.5 mm x 55.5 mm. <strong>Obv:</strong> Bust of Joyce right, name ADAM MORTON JOYCE above, title SUPERINTENDENT below in exergue, date 1917 in left field. <strong>Rev:</strong> Mint seal at upper left, branch at lower right, field inscribed MINT / OF THE / UNITED STATES / PHILADELPHIA. Ex John Jay Pittman, acquired from Miami Rare Coin Co. at the 1962 Philadelphia ANA Convention. Paper envelope with provenance notes included.