Dunhillion - Alfred Dunhill

Greetings to the forum

I recently purchased a bottle of Dunhillion Alfred Dunhill - which looks extremely old, and is bottle number 1 of 2500. All I know about this bottle is that it was only ever available in private clubs - the whisky is 23 years old and is a blend of exceptionally old and rare whiskies. I was wondering if anyone knew anything more about this bottling i.e. when it was bottled, ever tasted it, what blends might be inside, heard of any selling at auction and any other information.

Thanks in advance with kindest regards

Findlay