Cut the two ends off of the orange. Slice off a 1/4" slice for garnish and set aside. Cut the remaining piece of orange into quarters. Place the orange pieces, one of the maraschino cherries, and one of the slices of candied ginger in a sturdy glass or cocktail shaker. Muddle well. Add 3 dashes bitters and 1 1/2 ounces brandy, stir. Strain through the shaker or a sieve into an old-fashioned glass filled halfway with ice. Top with ginger ale and stir gently. Garnish with the orange slice and remaining cherry and ginger slice.