Sorry I missed this response - It looks like you have a bottle that dates to the very early 1960's (Spring-caps were discontinued after about 1963), at
which point the White Horse brand was almost entirely bottled in clear glass.
The bottle itself is in great shape, as do the labels. Your fill-level is getting seriously low, as the level is now just below the shoulder point of the bottle.
I have only 1 recommendation for bottles like this: Because the amount of air that is now in the bottle, it is not going to bring alot of money as a true
collector's piece, but may still be viable to drink. (The bottle alone might bring you a small amount at a local sale, but few people collect the empties,
though it is of an uncommon size to find intact.)
Personally, I would suggest drinking it up before it oxidizes to greatly, as this will affect the taste of the whisky itself....Whisky does not age like wine
once bottled, but over time too much loss of the contents does allow air inside the bottles, and this had over time have a negative effect on the flavor,
causing it to go rather "flat" in taste.
Walter C Hurst