Dec. 20, 1934: In case you doubted me (but you wouldn’t, would you?), here’s a recipe for the Bronx Cocktail, from the Amsterdam Evening Recorder, courtesy of FultonHistory.com.
In case you plan to mix one up, a Bronx Cocktail is one part Italian vermouth, three parts brandy and a dash of orange bitters. Shake well!
Notice that there are also three variations of the Manhattan.
ladailymirror.com 
Hmm. 2:1 is a dry Martini? My preference is 3:1, per the Pullman Parlor Car Commissary Manual of the same era.
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Earl: I guess the Bronx Cocktail was the origin of the Bronx cheer, no?
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