This is from the Gordon & MacPhail Private Collection range. This is an earlier addition to the series, before it replaced Rare Old as their premium label in 2018. These older editions often focussed on cask finishing, or simply on exceptional older vintage casks.
This is a vatting of first fill sherry hogshead #1860 & 1864, filled in 1953 and bottled in 2001.
Refer to photos for marks on tube