Filatelia e Francobolli

salve a tutti! Scuscati se scrivo in inglese, ma altrimenti faccio un pasticcio. I am unclear about the conclusions here of Stresa vs Stresa Borromeo. Assisted by AI, I was told that in fact “Stresa Borromeo” referred specifically to the seasonal postal substation on the Isola Bella. But perhaps ...