Watch List notes:

MYSIA, Pergamon. Circa 166-67 BC. AR Tetradrachm (28mm, 12.62 g, 12h). Cistophoric type. Struck circa 166-160 BC. Cista mystica within ivy wreath / Two serpents entwined around bow and bowcase; to right, horizontally oriented eagle standing left. Kleiner & Noe Series 6; SNG von Aulock 1367. Well struck on a broad flan, pleasing old cabinet tone. In NGC encapsulation 5872734-056, graded XF, Strike: 5/5, Surface: 4/5.

From the Robert W. Bartlett Bequest Sold for the Benefit of the American Numismatic Society. Ex Malter XXI (28 March 1982), lot 74.