2 ounces gin
1 ounce sweet vermouth
1/6 ounce maraschino liqueur
1 dash orange bitters
Garnish: Cherry
Stir with ice. Strain into a cocktail glass.

I found this drink in the "Old Waldorf-Astoria Bar Book". It is faily similar to the original (ie. sweet) Martini, but with the addition of Maraschino Liqueur