Mauritius 1859 Lapirot 2d Worn Impression with Cert

1859 Lapirot 2d blue (Worn Impression) (SG 39). VF/U example, close but clear to huge margins. Very neatly cancelled, canceller leaving upper fields openly exposed showing extensive wear to background lines. Signed: Calves & others; Photo-cert: Brandon. (cv£900). Clickable images of certificate and reverse of stamp below.