Boil eggs in boiling water for about 10 minutes until hard. Wash and drain the salad leaves. Wash dill, dab dry and pluck flags from stems. Coarsely chop all but a few flags for garnishing.
Mix mustard, chopped dill, 1 teaspoon of water and honey. Remove the eggs, rinse with cold water, peel and slice. Put 4 slices aside. Toast the slices of bread. Spread 2 slices with mustard-dill sauce, cover with salad leaves, some dill, egg and salmon.
Place 1 slice of toast on each, spread with sauce again. Cover again with salad leaves, some dill, egg and salmon and put 1 slice of toast on each. Halve the sandwich diagonally. Cover each half with a slice of egg, fix with skewers.
Garnish sandwich with remaining dill flags.