I have 3 unused tickets (all in a row) from the 1987 FA Cup Final. Royal Mail failed to deliver on time but arranged for a courier to meet in London on match day but the courier was late so the tickets were unused. I have all the documentation to prove this is legitimate. I am considering selling this but am very aware how unique an opportunity it would be for someone to buy this, I'd be surprised if there was anything the same in existence. Has anyone ever seen anything like it and would they have an idea on price I should look for? Thanks in advance