• Put a lump of ice in a glass and
• Two dashes of gum syrup; on this
• Two dashes of Curaçao
• Three of Boker’s bitters, a
• Wine-glass of Italian vermouth and
• One pony of rye whisky
• Shake
• Thoroughly mix, and
• Strain into a glass in which there is a twist of lemon-peel

One Hundred & One Beverages by May E. Southworth, 1904

The Pacific-Union Club is a social club in San Francisco, at the top of Nob Hill, founded in 1889 as a merger of two earlier clubs: the Pacific Club (founded 1852) and the Union Club (founded 1854).