"The forgotten man in the invention of rock and roll, Marvin Berry takes the initiative to call up his cousin Chuck to let him hear Marty McFly play Johnny B. Goode with the Starlighters, thus changing music forever! This limited edition bass drum-shaped coin celebrating the band that played the Enchantment Under the Sea high school dance is individually numbered as one of 5,000 worldwide and comes in exclusive packaging. The front depicts Marty playing the guitar, and the reverse features the band and their logo. It measures 38mm in diameter and comes in an acrylic case. - Limited to 5,000 - Exclusive Enchantment Under the Sea Dance packaging - Officially licensed - Individually numbered to the edge - Diameter 38mm "