The medal's obverse bears two kneeling female figures shaking hands across a watery chasm; left figure holds shield emblazoned with Stars and Stripes, right figure shield with Union Jack. In background, Statue of Liberty and Mayflower. Across chasm, 1620 - MAYFLOWER - 1957; signed at bottom, P. VINCZE
The medal's reverse bears Puritan family and stevedores loading trunks, ship with reefed sails in background. Around, "THUS OUT OF SMALL BEGINNINGS GREATER THINGS HAVE BEEN PRODUCED" / BRAD FORD; in exergue, 1620; signed at right top of exergue, P. VINCZE
The circular medal was struck in bronze, silver, and gold.
Many thanks to Bob Slwsky for allowing me to use the images from his eBay store.