請問約翰藍牌

剛剛清家裡時發現1支22年前在新加坡免稅店所購買的約翰藍牌(750cl.43%vol)，正面雖然沒有標"OLD"但背後的英文"Malty flavour  Specially selected from some of the finest and rarest of the Walker Reserves,Each individual whisky selected to create the Blue Label blend has been chosen to be at the peak of ns perfection - some having aged in oak for up to 60 year,The result is a taste that will appeal to even most expert palate."有提到是用60年去調的，有人喝過嗎!!