cover -- "PRUSSIA/crown/REGISTERED", a superb strike on 1867 Austrian 5kr. postal stationery front uprated with 10kr. pair, and "PRUSSIA/REGISTERED" circular datestamp in black on similar 5kr. stationery front (not uprated): and 1869 from Bremen bearing NGC 2gr. and 5gr. and showing the oval datestamp "REGISTERED-LONDON/FROM/PRUSSIA", a fine strike in red. All to London, and also showing "crown/REGISTERED" handstamps of the Cologne-Verviers TPO. One ex A W Robertson collection, an attractive trio. (3 items)