Mobile Box - London. 1844-48 Entire letter and entires (2), to London (2) or Liverpool with boxed "M.B", two in red with matching straight line "SHIP LETTER" or circular "SHIP LETTER / LONDON" datestamp, the other with "M.B" and straight line "SHIP LETTER" both in black, two endorsed by the steamers "Sphinx" or "London", charged 10d (2) or 1/3, minor faults. (3).

Mobile Box - Southampton. 1844-46 Entire letter and entire from Le Havre to London, with boxed "M.B" and matching Southampton backstamps in black or blue, charged 1/3 or 2/-, the 1846 entire endorsed by the Le Havre forwarding agent Alfred Rigot, the first with file folds, otherwise both fine, the M.B handstamp very scarce in black. (2).

Mobile Box - Channel Islands. 1909-27 Picture Postcards to Jersey with French stamps cancelled boxed "JERSEY / FRANCE / M.B" datestamps (2, also cancels on two pieces); and 1923 picture postcard from St. Malo to Guernsey with France 30c unusually cancelled by "GUERNSEY" single ring c.d.s. (5).