Repeated references to "dual white sidewall tires" are not likely referring to actual dualed whitewalls as were once made, but likely to whitewall tires with an upper case "D" as in the brand, "Dual whitewalls." The 1955 Howard Hughes Caribbean was equipped with Dual (brand) whitewalls with the famous "Nygen cord." As for "special jet wing emblem"... there is nothing special about the stylized bird ornament on the hood. Just the standard senior ornament for 1955.