Add 2 tbsps, plain gelatin to 1/2 cup cold water; let stand 5 min., then add 1 1/4 cup boiling water, 1/2 cup suger, 1 tsp, salt; stir till dissolved. Add 1/2 cup syrup drained from Dole pineapple slices, 1/2 cup vinegar, 1/4 cup lemon juice. Pour a thin layer of this into an 8"x 4"x 4" loaf pan, chill till almost firm; arrange 2 slices pineapple over gelatin as shown, center with pimiento, chill till firm. Mix 3 Cups finely shredded cabbage, 1 cup diced celery, 1/4 cup each diced green pepper and pimiento; dice 1 or 2 slices pineapple and add; fold into remaining gelatin, pour over pineapple in pan, chill. Turn out, serve with mayonnaise. Serves 6 to 8.