diameter: 3 3/16 in. ( 8.1 cm )
Inscription: reverse, bottom center, on border: "THOMASON"
White metal struck medallion with obverse depicting Pan and Neptune, with legend: "UNION OF ERIE WITH THE ATLANTIC." Reverse depicts eagle perched upon world globe over shield with scroll inscribed "EXCELSIOR" below; legend: "ERIE CANAL COMMENCED 4 JULY 1817 COMPLETED 26 OCT. 1825."
Due to ongoing research, information about this object is subject to change.