age and how to Describe this whisky

[teekarloon]

I post to whisky blend group but not yet get the answer, so I also post here and hopefully can get some information (TQ to ready it). I'm Tee, from Malaysia, I have 3 bottle unopen dewars white label whisky imported into Malaysia in year around 1960's, I try find the label and the 'product name' from internet but can't get it, and I also e-mail to Dewars.com but no response, I would like to know how shall I Describe my whisky if I wanna sell it and what is the age, the bottom of bottle have SA 8|9 58, and other one have SA 8|9 69, may I know current market price and quantity stock available in market (estimation), the taste is very good, like a whisky merge with VOSP taste full in mouth and very smooth.

Thank you and appreciated if u able/ have free time to help me

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