-- 1843 (19 Sept.) entire letter from Malta to London (5.10 arrival) by the "Tagus", with unframed "MALTA/SHIP LETTER" in black on face, disinfected at Standgate Creek Quarantine Station and passed to the Queenborough post office where the small step type "QUEENBOROUGH/SHIP LETTER" (Type S4) h.s. was applied in red, the last year of use, rated "8" (uniform incoming ship letter rate from 1840)