Natal 1857 3d Rose Umhlali Manuscript Cancel, Rare

1857 3d rose, embossed (SG 4). A great-looking fully-sized square-cut example, good margins and great embossing, used with complete manuscript "Umhlali" cancellation diagonally leaving stamp impression unobscured. VF, a superior example of this cancellation, rare. Expertised: Schlegel. (cv£500+)