Lot 51467 – 1859 Lapirot 2d blue pair and Britannia 6d blue on cover to Great Britain

1859 Lapirot 2d blue, worn impression, vertical pair with wide margins all around, in combination with 1859-61 Britannia 6d blue, full to ample margins, tied or cancelled by target cancels on 8 November 1859 cover to London, with “G P O / MAURITIUS” cds on reverse, the only cover known to Great Britain bearing Mauritius primitives, being additionally a unique franking; cert. BPA (1995); ex Maurice Burrus (1963).