The Income Tax Cocktail is by all accounts a Bronx cocktail with one additional ingredient: bitters. This is a relatively simple recipe dating back to the 1920s.
Traditionally the classic French 75 is listed as a long drink in many bar books. These recipes call for powdered sugar rather than sugar cube or simple syrup as is common now.
If you are a cocktail enthusiast or just love trying oldie but goodie classic cocktails, then there are two Colony Cocktail recipes worth checking out. The Colony Cocktail is said to have been the house cocktail at the Colony restaurant