This retro snack and dessert spot is best known for onsen kōhī (coffee made with hot-spring water; ¥550) and ogura toast (topped with azuki beans and ice cream), and it's been making egg-salad sandwiches since it opened in 1963 (set including coffee ¥920). The pet soft-shelled turtle has been here since it was the size of a ¥500 coin.
Look for the barrel above the door, in the Sol Paseo Ginza Arcade.