Ambassador Blended
 

purchased in the 1930's/40's still sealed by the state of Illinois. 25yr. How rare is this? value? is it still good? how long till bad?:

Taylor & Ferguson produced a range of ages of Ambassador Blended Scotch from 8, 10, 12, 21 and 25 year olds. This was mainly an export brand I think to Europe and other countries. Try contacting Martin Green at Bonhams.com for a value and be sure to post the info here.