In a bowl beat the eggs. Stir in the milk, sugar, vanilla, and salt. Pour the mixture into 12 custard cups. Place the custard cups into a baking dish. Sprinkle with nutmeg. Pour boiling water in the baking dish around the custard cups until the custard cups are about one inch deep in the boiling water. Bake at 325° for 30 to 40 minutes or until a knife inserted near the center of the custard comes out clean. You can serve the custard warm or cold. To unmold the chilled custard, loosen it with a knife by sliding the knife around the edge and then turning the custard dish upside down on a serving plate. This makes 12 servings.