Combine pickle, onion, celery, mayonnaise, seasonings and crab meat. Combine egg, milk and salt. Dip one side of each slice of bread in egg mixture. Place bread in a heavy frying pan which contains about 1/8 inch of fat, hot but not smoking. Fry at moderate heat until brown on one side. Drain on absorbent paper. Spread plain side of 6 slices of bread with crab mixture; cover with remaining 6 slices of bread. Place on a well-greased cookie sheet, 15 1/2 x 12 inches. Heat in a moderate oven, 350 degrees for 5 to 8 minutes or until heated through. Serves 6.
» Ice-cold beer or ale is a good partner for these sandwiches, or try an India pale ale for an interesting change of pace.