1oz Plymouth gin
.5oz Sweet vermouth
1 dash Maraschino
2 dashes Orange bitters
Add all liquids to a mixing glass. Add ice and stir. Strain into a chilled cocktail glass and garnish with the orange twist.
Here is another good example of changing the ratios to alter the flavor of your cocktail. Bridal is essentially a Martinez, swapping the traditional 2:1 ratio to favor gin. Bridal also changes to orange bitters and an orange twist from the Angostura and lemon twist used in the Martinez. The increased proportion of gin makes Bridal drier, a bit more spirited and botanical. The other modifications bring the orange flavor to a more prominent role. Give it a try along side a traditional Martinez to see which style suits you best.
Not much to find on this one, found it in The Old Waldorf Astoria Bar Book (1935).