Trying to get to the bottom of a presentation box

Not literally though. I'm trying to find out if a boxed 1967 Single Malt is "any good". It is labelled Spey single malt scotch whisky and has come from Glen Catrine via Durham. It looks like it was intended for the Taiwan export market. It was bottled in 1999.

I'm fairly convinced this is a bottling of a fairly anonymous single malt that would normally go into one of the Glen Catrine blends like High Commisioner. The only distilleries they seem to own produce Glen Scotia, Littlemill and Loch Lomond and none of which are Speyside whiskys.

Does anyone have any info on what Whisky this might be?