I have bottles, are they of any value...HELP

I have many unopened bottles of Canadian Whiskey and I was wondering if they had any value.
Grand Award, 15 year old, imported Distinguished Canadian Whiskey from 1956. The US Internal Rev. # (356570829) and the excise # (C4453268) seals and still in tact. Registered at the Distillery, JM Douglas & Co. Limited, Montreal Canada, No. B 169272 and in the lower right hand of the label is WG-424A. Imported by Jules Berman and Associates, L.A. Cal.
2 bottles of Canadian Club- Blended Canadian Whiskey (1966 & 1973) 6 year old. Again, all seals are in tact as the previous described bottle. Imported by Hiram Walker & Sons Lmt.
1 bottle Seagrams V.O. 6 year old (1966) with all seals in tact.
1 bottle of Windsor Supreme Canadian Whiskey (1966) all seals in tact.

Are these bottles worth anything and does whiskey ever go bad after a certain amount of years? Thanks for you help....

[Eric1965]

Yes! in some cases or I should say conditions. If seals are intact and no extra air in them and the colour is a clear amber with no particals or cloudiness than your bottles are more than drink able. Again Whiskey does not age in bottles so the content changes very little. As to price it varies on the auction or buyers that are looking for it. In other words if there is a demand or not?