The 2-cent is the rarest of the Hawaiian Missionaries, with 15 copies recorded, only one of which is unused.
ðə tˈuːsˈɛnt ɪz ðə ɹˈɛɹɪst ʌvðə həwˈaɪən mˈɪʃənˌɛɹiz, wɪð fˈɪftiːn kˈɑːpɪz ɹᵻkˈoːɹdᵻd, ˈoʊnli wˈʌn ʌvwˈɪtʃ ɪz ʌnjˈuːzd.