Boil the shrimp in water for about 2 minutes, or until they become pink. Then, drain them and transfer to an ice bath. In a separate bowl, combine mayonnaise, ketchup, and brandy. Season the mixture with salt and pepper. After draining the shrimp thoroughly, mix them with dill, mushrooms, radishes, and egg. Gently fold in the mayonnaise mixture. Take a large serving platter and place salad greens on it. Arrange the shrimp mixture on top. Serve right away, accompanied by a delicious baguette.