very old bottle (1917) with cap sealing still on.

Hi!

In a old house this evening, we found a:

"Scotch Whiskey, BLACK & WHITE from James Buchanan & Co Ltd, Glasgow and London.

This must be very old, and is still intact and not opened. The whiskey looks pure, but we wouldnt open it, yet

Some old folks here in norway said that a married couple got it for present in 1917, just after/in the WW1. It is by hand, written with a pencil: Fall, 1917.

Tha labels are also intact and says:

"Scotch Whiskey
Black&White, special blends of choice old scotch whiskey.
James Buchanan
Glasgow and London

Glentauchers-Glenlivet Destillery, Mulben Speyside.

How old could this be?
It got all the labels on, so i could post some pictures later on.

Thanx