1817 folded letter to London, endorsed ‘Via Madrid and Paris’, with a 2/2 (d) charge mark. A black ‘Par Bayonne’ cachet is at the upper right, at the lower left is a ‘S. Roque / Andalucia / Baxa’ cachet in red. A London dotted ‘F. P. O. MY 27 1817 arrival datestamp is on the back. Addressed to Lord Rosslyn who was a prominent politician in the House of Lords under Wellington and Peel.