The head was being transported across London for a valuation ahead of an upcoming sale, but forgetful auctioneer Joby Carter accidentally left it in a cardboard box on a train.

Joby had taken the Macca head to Hammersmith for Beatles memorabilia expert Peter Blake - the man who painted the iconic Sergeant Pepper cover - to take a look at it.

But on his way back to Maidenhead Joby forgot to pick up the box containing the head when he left the train, leaving it to continue on a 'Magical Mystery Tour.'

He asked for the 'Help' of guards at the station who immediately contacted lost property at the stations next stop but to no avail, the head has gone missing, and without a 'Ticket to Ride.'