Henry Stanley and David Livingstone

Two items: ink signature, “Henry M. Stanley,” on an off-white 4 x 1.5 sheet; and a clipped mailing envelope panel hand-addressed by David Livingstone, who writes: “Wilbraham Taylor, Esq., to be called for.” An unknown hand has added Livingstone’s name above. In overall very good to fine condition, with some light staining and toning.