As happispirit has point out there is a glass-marking on the bottom of his bottle noting "10 HAIG & HAIG EDINBURGH SCOTLAND",
denoting that the bottle was manufactured prior to the move of Haig & Haig from Edinburgh to Markinch which began about 1950.
(pre-1951 bottles are marked on the Shoulder-label as "Edinburgh", 1951 Shoulder-labels are marked "Markinch & Edinburgh", and
1952+ Shoulder-labels are marked "Markinch".) ....The "10" is believed to be a machine marking.
This bottle bears only the "Edinburgh" notation on the Shoulder-label, indicating that this bottling was completed prior to the
completion of the move from Edinburgh to Markinch.
The bottle happens to bear the (US) Sole Distributor information of Renfield, marking this bottle's manufacture to 1947+, when
Renfield was awarded Sole Distribution rights to the US (From 1935-1946 this had been awarded to Sommerset Importers.)
Walter C Hurst