RARE PREPAID "GRANDE BRETAGNE/PAR ST. MALO" COVER + "INSUFFICIENTLY/PREPAID" 1d REDS COVER; Fine and attractive 1 Oct. 1831 EL from "Guernsey" to St. Malo endorsed "Post paid" bt sender on the front and "Port Paye" in red by P.O. with very fine rare "GRANDE BRETAGNE/PAR St. MALO" and matching boxed "P.P." on the front; plus 20 Dec. 1865 E to St. Malo with 3 1d Reds (pl.71) tied by "GUERNSEY/324" Duplexes but overweight and so with London "PD" In circle cancelled by "50" Numeral in transit and "12" charge added as well as London "INSUFFICIENTLY/PREPAID" mark on the front. (2 covers) Cross Reference: FRANCE, OVERSEAS DESTINATIONS, POSTAGE DUE MARKS (Image)