In the work bowl of a food processor, pulse together cream cheese, dill, and salt until well combined. Spread mayonnaise onto half of bread slices, and set aside. Spread cream cheese mixture over remaining bread slices, and top with cucumber and prepared mayonnaise bread slices. Cut crusts from bread and discard. Cut sandwiches diagonally into 4 triangles and serve.
Recipe by Cottage Journal at https://thecottagejournal.com/spring-lunch-menu/