Make the egg salad: Crush the eggs using a whisk. Add 1 tablespoon of mayonnaise and season with salt and pepper.
Slice the onion and half the cucumber thinly as shown in this photo. Massage with salt, rinse off, and squeeze out tightly.
Make the crab stick salad: Mix the cucumber and onion from Step 2 with shredded crab sticks and mayonnaise, and season with salt and pepper.
Spread the sliced bread with butter, and line up 2 slices next to each other. Place a lettuce leaf on each, and squeeze on a little mayonnaise.
Add the sliced tomatoes.
Cut the ham in half, and place the slices next to each other as shown. Put a slice of bread on each sandwich.
Put another slice of bread on the top of each sandwich. Spread the crabstick salad on top, and cover with bread again.
Place 2 more slices of bread on top of the stacks. Spread the egg salad, top with 2 slices each of thinly cut cucumber (sliced in 8 cm long slices) and cover with a slice of bread each. (You'll end up with 2 stacks of 3 sandwiches each.)
Slice the sandwiches into thirds. Use a serrated bread knife. If you don't have one, cut slowly, using a back-and-forth sawing motion.
Be sure to wipe the knife clean between cuts.
Line up the sandwiches so that the cut sides look pretty.
You can also cut the sandwiches into triangles or quarters, or however you like.
Story Behind this Recipe
This is a skill I learned when I used to work part time in a bakery.
I made the sandwiches in the picture up top with 3 loaves of bread. Be sure to put the ham on the bottom. (This prevents them from spreading out.) Just use a little mayonnaise in the egg mixture.