P&O MAILBOATS, B16: Front from a soldier sent to England with 1d red perf.14 tied by clear “B16” numeral, countersigned by his commanding officer, faults and backed on paper, scarce usage of this cancellation on the mailboat prior to its switch to the Plymouth & Bristol TPO (Image)

P&O MAILBOATS, A80: Front to Southampton with twelve 1857 1d red tied by “A80” numerals, tear across face panel, not touching the adhesives, nevertheless a very rare and attractive franking with this cancel (Image)

P&O MAILBOATS, A83: 1861 Mourning envelope to London with 1856 6d lilac tied by clear “A83” numeral, arrival bs, fine (Image)

P&O MAILBOATS, A83: Envelope endorsed “Officers Letter” to Kingsbridge with 1865-67 6d pl.5 (straight edge at left) tied by “A83” numeral, arrival bs, faults, cert. RPS (1975), plus a faked cover with what looks like an extra 6d added (Image)

P&O MAILBOATS, A85: 1863 Envelope endorsed “10th June 63 – Aden” to Ireland with 1856 6d lilac pair tied by clear “A85” numerals, reverse with H&K Pact. cds, some cover faults, very scarce (Image)

P&O MAILBOATS, A86: Front from seaman aboard HMS Furious to London with 1857 1d red tied by clear “A86” numeral, countersigned by commanding officer, minor faults Note: HMS Furious saw action during the Trade Wars with China at the bombardment of Canton in 1857 and at the blockade of the Tacu forts near Tientsin on the Peiho river in 1858. (Image)

P&O MAILBOATS, A86: 1867 Envelope probably originating from Hong Kong (cds on reverse), endorsed “Officers Letter”, sent to England with 1864-79 1d pl.204, 1865 3d pl.4 and 6d pl.5, cancelled by clear “A86” numerals on board P&O’s “Syria”, Mounts arrival bs, some cover faults incl. missing backflap, a very rare 3-colour franking (Image)

P&O MAILBOATS, A88: 1866 Envelope endorsed “Officers letter” to Liverpool with nine 1857 1d red cancelled by several “A88” numerals, Liverpool bs, underpaid 1d, adhesives slightly pale and the cover soiled, still a scarce franking (Image)

P&O MAILBOATS, A88: Envelope to London with 1855-57 6d left wing marginal tied by “A88” numeral, ms “2”, very fine, this stamp unpriced by SG (Image)

P&O MAILBOATS, A88: Envelope endorsed “Officers Letter” to Kingsbridge with 1865-67 6d pl.5 right wing marginal tied by “A88” numeral, arrival bs, fine (Image)

P&O MAILBOATS, A88: 1860 Envelope to London with 1856 1s green right marginal tied by clear “A88” numeral, arrival cds adjacent, minor soiling, fine and rare 1s franking, ex E. E. Yates (Image)

P&O MAILBOATS, A99: 1860 (Mar 28) Envelope to Torquay with 1856 6d lilac cancelled by clear “A99” numeral, arrival bs, minor soiling, fine, cert. RPS (1975) (Image)

P&O MAILBOATS, B56: 1865 Envelope to Great Yarmouth with 1d red pl.95 strip of 6 cancelled by “B56” numerals, arrival bs, envelope has been repaired and cleaned, an attractive and scarce franking, cert. BPA (1987) (Image)

P&O MAILBOATS, B56: 1866 (Dec 9) Envelope with original contents headed “HMS Endymion, Alexandria” to England with 1865-67 6d pl.5 tied by “B56” numeral, with Reading arrival bs, fine (Image)

P&O MAILBOATS, B57: 1863 Envelope from a Seaman on-board HMS Janus to Ireland with 1857 1d red cancelled by crisp “B57” numeral and tied by Middleton arrival cds, some stains, scarce (Image)

P&O MAILBOATS, C79: 1869 Envelope with embossed logo of HMS Star on backflap, sent to London with 1865-67 4d vermilion pl.8 and 6d lilac pl.6 tied by single clear “C79” numeral and London arrival cds, face panel with some cross-written notes regarding contents, fine Note: Note: Lieut. J.W.L. Jekyll served on H.M.S. “Octavia” and H.M.S. “Star”, the latter a 4-gun wooden vessel which operated around the East India Station in the 1867-69 period. (Image)

P&O MAILBOATS: Stamp selection incl. 4d vermilion with A80 (unlisted by SG), 81, 83, 85 (unlisted by SG) and B56, 1865-67 6d lilac with A81, 83, 86, 88 (pair, cert. RPS) and 99, 3d with A83, 1862 6d with A83, and 10d with A83 and 99 (2), mixed condition (Est. € 400/600) (Image)

P&O MAILBOATS: Stamp selection incl. A85 on 1856 6d pair (cert RPS), 1867 6d and 9d (unlisted, faulty), A86 on 1862 4d vermilion, 1867 3d pl.5, 1856 6d, A87 on piece with 1856 4d and 6d (unlisted), A90 on 1856 6d and 1862 9d (unlisted, perfs. added at top), mixed condition (Est. € 300/400) (Image)

P&O MAILBOATS: Stamp selection incl. A81 on 1856 6d, 1865-67 6d pl.5 & 6, A86 on 1862 6d, piece with 1862 4d & 6d, 1865-67 1s (unlisted), piece with 2d blue pl.8 pair (unlisted) and 1867 6d, 1865 6d pl.5 (2), A90 on 2d blue pl.8, and A99 on 1865 6d pl.5 (2), mixed condition (Est. € 300/500) (Image)

P&O MAILBOATS: GB surface printed selection incl. A81 on 1867-80 6d, A86 on 1867-80 6d, A99 on 1856 6d and 1867-80 6d p.8 pair, B12 on 1862-64 6d pair and 1865-67 6d strip of 3, and B56 on 1862-64 4d & 6d on piece and 1867-80 4d & three 6d on piece, mixed condition (Est. € 200/300) (Image)

P&O MAILBOATS: 1d Red selection (both corner stars and letters) incl. A81 on pl.76, A82, A83 on NK pl.115 and JC pl.117 and unplated, A85 on rejoined strip of four (cert. RPS) and horizontal strip of 6 on piece, A99 on pl.89 vert. pair and pl.99 single, B03 in blue-green on strip of four, B12, and B86 on pl.97 vert. pair, mixed condition (Est. € 200/300) (Image)

CUNARD MAILBOATS, B61: 1862-64 6d Lilac (hair lines) cancelled by crisp “B61” numeral, fine and very rare, with no covers recorded and rated G by Parmenter (very few known) (Image)

CUNARD LINE MAILBOATS, A92: Sailor’s envelope from HMS Galatea to London with 1856-58 1d red tied by clear “A92” numeral, countersigned by commanding officer, arrival bs, fine (Image)

CUNARD MAILBOATS, A94: 1862 Envelope from seaman aboard HMS Hero in Bermuda (annotated at top with logo on backflap), with 1857 1d red pl.48 tied by A94 numeral, Helminster arrival cds, soiled and creased, scarce, cert. RPS (2005) (Image)

CUNARD MAILBOATS, A57: Front to England with strip of six 1857 1d red tied by “A95” numerals, attached to envelope with written message from the original sender confirming that it was sent from HMS Nile in the West Indies (Image)