Unpaid letter from Cadiz, Spain 13 March 1807 to Copenhagen, Denmark. Postmarked red ‘CADIZ’ and list no. ‘1’. French border transit border mark ‘ESPAGNE / PAR BAYONNE’ and BGD mark Hamburg in red ‘HAMBOURG. 4 / B.G.D. 6 Avrio 1807.’ On reverse list no. ‘25’, share of postal rate ‘46’, and front ‘39’ red crayon being rate from Cadiz to Hamburg, 7 Lybske Skilling Hamburg-Copenhagen, total due 46 Lybske Skilling.