Ancestor Dewar's Rare Old Scotch Whisky

[parkbear]

Hello. I am trying to date a bottle of Whisky. Ancestor Dewar's Rare Old Scotch Whisky with a white label around the neck with the Dewar label.

I have attached pics for ID. The bottom reads SA850 N 7 UGB. There is no codes or numbers on the cap.

It was originally purchased in Scotland by my Great Great Uncle for my Grandfather (I think) but either way it has now passed to a third generation, me. After carting it around all this time my dad is getting impatient to drink it but I tell you I have a hard time opening it - once it's gone, it's gone.

If anyone could ID it or help me find the right person that would be great. I did do a search of your forum and I found a few e-mails that might be able to help but it seemed I should start with the people here.

If you need additional details or closer images let me know.

heres a link to pics http://www.flickr.com/photos/1545362...7628023704184/