Hi and Thank you for your post.
Value is a sticky thing without pictures of the bottle and box. Unseen in the box is the liquid clear and box is decorative and devoid of nicks and marks been 30.00 to 50.00 if you got some competition at bidding. A new bottle sells for 24.95 in that size and because it is a blended whisky the 72 should taste the same as a 2013 batch. Anything pre 50's where blending was not an exact art as it is today; these are the ones saught after to the collector.
Cheers, And Happy Drinking!!!