The typeface Examen Mono was created for a graduation exhibition with the main theme “ausbilden” (german for “to educate”, but also “to form” / “to evolve” / “to occur” e.g.)
It’s loosely inspired by scrap and remnants (punching slug) that left over from metal shaping processes, like blanking. It also refers to Bradbury Thompsong’s “monoalphabet” Alphabet26, with its mixture of uppercase and lowercase letters with the same size.