Looks like you got some more 60's bottles here...these have not survived so
well though - Not too uncommon for bottles of this age, with a "cork-plug"!
With too much air in the bottle, whisky will actually start to oxidize... Giving
your drink a rather rusty "iodine"-like taste: They may still be good to drink,
but I would approach that with a bit of caution.
If you decide to try these, sniff the contents and see if they smell ok, then
try a small sip...They might need a bit of airing out, so a dash of cold water
added to the shot might be helpfull.
Walter C Hurst