Had this been a winner, it might have been considered to be a “passepartout” (‘Originally: †a person who may go anywhere (obs.). Subsequently: a thing giving a person the right or opportunity to go anywhere; spec. a key that opens any or many doors, a master key; (occas.) a passport. Freq. in extended use and fig.’, OED). I’m assuming it was a loser as it was casually abandoned in a bush in W14.
Day #39 of the second 365 project, where the daily pic is informed by the OED word of the day.