Obverse Design Legend curving above says "THE . BRITISH . GLORY . REVIV . D . BY . ADMIRAL . VERNON". There is an inside line enclosing the legend. In the center is a half length figure of Admiral Vernon with his body three quarters turned to our left, but his head fully facing forward. Vernon is holding a baton in his left hand, and his right hand is pointing with one finger at the letters "BR". The figure of Admiral Vernon goes all the way to the edge of the medal. The medal has a smooth plain raised edge.
Reverse Design Legend curving along the top says "HE . TOOK . PORTO . BELLO . WITH . SIX . SHIPS . ONLY". There is an inside line enclosing the legend. In exergue (under a line along the bottom of the medal) it says: "NOV 22 1739" (no stops). There are no ornaments below the date. The center is the attack on Portobello. The six ships are lined up two in the top row and four in the bottom row. those below in a slightly staggered line. Five ships are sailing to our right, and the left-most ship in the bottom row is sailing to our left. There two boats in the similar Betts #207, but the image above is not clear. There are prominent water lines throughout the harbor. A tower and two steeples point to the first letter "L", to the right of "O" and at "WI". The medal has a smooth plain raised edge.
Distinctions There are about 40 varieties with a half-length Vernon as the main obverse design. Of those, about 17 are small round medals near the 26mm size of this one. Seven of those 17 have "THE BRITISH GLORY REVIVED..." legend. Three of those (including this one) have Vernon's finger pointing at "BR". Of the two varieties very similar to this one, one has the obverse "D"'s reversed and has the spires or steeples on the reverse at "BE", right of second "L" and at "W". The other has an identical obverse, but the spires or steeples are at "LL", at the stop right of "O" and a thrid spire left of "T".
Detail On Obverse of VN-2.77 Detail On Reverse of VN-2.77
Detail of VN-2.77
Note Vernon's finger pointing at "BR".
Detail of VN-2.77
Note the spires or steeples at the first letter "L", right of "O" and at "WI".
Metal Copper and Brass. Weight Unknown. Size and Shape Round, 26½ mm in diameter.
Rarity Common. Designer or Issuer Not known. Other Catalog Numbers McCormick-Goodhart #67, unlisted in Betts but similar to Betts #207.
Notes

Admiral Vernon's attack on the so-called "Iron Fort"
Admiral Vernon's attack on the so-called 'Iron Fort'
Courtesy of Jean-Philippe Souche (ebay seller cherry-07) from an 18th century German plate