2 Pence dark blue, Queen Victoria, engraved Perkins, Bacon & Petch, plate 4, design I, comb perforated K16, alphabet I, watermark 1 Small Crown, slightly bluish paper, horizontal strip of three and single, letters LA-LB-LC and LD, cancelled London main post office duplex "18" on privately forwarded letter written Bad Rheme, Prussia, 20 March 1855 (present Bad Oeynhausen), to Münster, Westphalia, Prussia, posted London with "LONDON AP 17 1855" datestamp, arrival "AUSG. 19 4" on reverse, stamps perfectly perforated, fresh deep colour. Folded letter overall very well preserved, age-appropriate patina and attractive franking. 8 Pence for letter up to 1/2 ounce via Belgium, Ostend, Aachen to Prussia, confirmed by red double-circle "ENGLAND PER AACHEN 18 4 B", photo certificate Albert Louis BPP (2024) "genuine and in a perfect state of preservation", Mi. 1.400.- (SGNo. 19 Spec. F1), ex Ake Rietz collection.