Mortlach 20 Year Old Cowie’s Blue Seal

Mortlach 20 Year Old Cowie’s Blue Seal appeared in 22 auction lots over the last 12 months across the auction houses wsky1 tracks — scarce at auction (a good find when it appears). That is up 144% on the previous year. It has traded at 2 different auction houses in that period. That puts it in the top 3% by auction activity among the 29,926 bottles wsky1 tracks — most collectable bottles hammer only a handful of times a year.

The latest hammer price for Mortlach 20 Year Old Cowie’s Blue Seal at auction is £140. Across the most recent 24 months of auction data, the median hammer price is £140, with a high of £180 and a low of £93. All prices are in GBP and exclude buyer's premium. Data is aggregated from major auction houses including Scotch Whisky Auctions, Whisky Auctioneer, and Bonhams.

Mortlach 20 Year Old Cowie’s Blue Seal is down 17.6% year-on-year based on monthly median hammer prices. Over the past 6 months it has moved down 3.4%. Past auction performance is not a guarantee of future value.

Mortlach 20 Year Old Cowie’s Blue Seal regularly appears at major Scotch whisky auction houses including Scotch Whisky Auctions (Scotland), Whisky Auctioneer (Scotland), Just Whisky, Whisky Hammer, and Bonhams. The current median hammer price is £140 (excluding buyer's premium). At most major houses, buyer's premium adds 24–28% on top of hammer for the buyer; sellers typically receive the hammer price minus a sales commission of 5–15%.

Over the past 12 months Mortlach 20 Year Old Cowie’s Blue Seal has moved down 17.6%, with a current median hammer price of £140. The bottle has been observed at auction across 34 recorded lots in our database. wsky1 provides hammer-price data for informational purposes only — not investment advice. Whisky is an illiquid alternative asset; secondary-market value depends heavily on bottle condition, fill level, label integrity, and timing.

wsky1 ingests public auction results from major auction houses (via direct scraping of Scotch Whisky Auctions, Whisky Auctioneer, Bonhams, and Whisky Hammer, plus aggregated data from WhiskyHunter). For each bottle, we group hammer prices by year-month and compute the median price per month. The figures shown — latest £140, 24-month median £140 — are derived from this monthly-median methodology. All prices are hammer prices in GBP, excluding buyer's premium.

No. All prices on wsky1 are hammer prices only. Buyer's premium at major Scotch whisky auction houses currently runs at 24–28% on top of the hammer price. A bottle of Mortlach 20 Year Old Cowie’s Blue Seal that hammers at £140 would cost the buyer approximately £176 all-in including buyer's premium.