Signatory currently bottle at three strengths: 43%, 46% Unchillfiltered (UCF) and Cask Strength.To add proof of authenticity to their cask strength bottlings, Signatory always include the cask numbers, date of distillation, date of bottling and number of bottles produced.Signatory Vintage’s aim is to offer as wide a range of whiskies as possible, some of which are not even bottled by the proprietary distillery. This allows malt enthusiast to sample the huge variety of subtle differences which occur between casks.

The Linkwood Distillery was established in 1821, but only started production in 1824. Owner Peter Brown was the manager of the Linkwood Estate and wisely kept his nose clean until the 1823 Excise Act was on the stature book. The distillery was rebuilt in 1874 and was run as an independent distillery up until 1932 where is joined DCL, now Diageo. It has remained in production ever since, with regular upgrades taking place, most significantly in 1972 when a new distillery was built opposite the old buildings. The owners ran both distilleries until 1985 when the original distillery was used as an experimental site. The capacity of the distillery is now around 5.5 million litres per annum.