England. 1840. One penny, black “A-D”, plate 11. MOURNING cover in fine small size from Huntingdon to Henley on Thames with a very fine four margined example of the rare PLATE 11. On front HENLEY-ON-THAMES AU 5 1841 datestamp. Small tear to envelope at upper left. A very fine and attractive cover. SG: £ 16.000. Mike Jackson certificate 2014. [ ✉ ]