The NFL has received a response from PepsiCo and is evaluating it, according to McCarthy, who says the NFL may be satisfied if the ad is either pulled or modified substantially, so that it is clear that PepsiCo has no affiliation with either the NFL or the Chicago Bears.

FORBES: Focus On The Forbes 500s: PepsiCo

"As this horde finishes with the coins of Tiberius, it could date to either the Roman invasion of Britain in AD 43, or possibly the Boudicca revolt in AD 61, it's difficult to say either way, " said Mr Marsden.

BBC: Roman gold coin revealed in 'lucky' Norfolk treasure find

Every other character on the show who has left Don Draper's ad agency has either never been heard from again, or revisited in a one-off episode and then rarely to never heard from again.

CNN: Matthew Weiner reveals Peggy's fate on 'Mad Men'