Quetschn (Bavarian, engl: squeezebox)Schifferklavier (German, engl:seaman's piano)
Ziehharmonika (German, engl:pull harmonica)
Bob,
German button accordion armonica Triestina (which mistakenly atributes it to the Italians).
Not necessarily. Triest was part of Germany/Austria during its history so it depends on what moment in history the expression "armonica Triestina" was invented.