i have a bottle of dewars victoria vat scotch
I have recently aquired a bottle of Dewar's Victoria Vat scotch. I know that it is older than 1954 because its name was changed in 54 from victoria vat. The bottle is still sealed and hasnt lost any to evaporation. It even has an Internal Revenue tracking number. Can anyone tell me if what i have has value. If so, how much and how can i acurately date it?