Oops....

In a scenario reminiscent of the film "Charade", an unknown voter in the recent US elections posted their ballot paper in using a very rare stamp which could be worth half a million dollars. I would imagine the burning question now is - just who does it belong to? It could be the voter (if they could ever identify themselves), or the person who spotted it, or it could be argued that once posted, it became the property of the US mail service, i.e. the Government. I know where my money would be!