PITCAIRN ISLANDS, 1920,
"Posted at Pitcairn. I". Magenta straightline handstamp on stampless
cover to San Francisco, "20" centimes due handstamp and ms. "Due 4c" at
left, violet "Moved" handstamp, cover with few tears and creases at top
clear of postmarkVERY FINE. A RARE EARLY PITCAIRN ISLAND COVER.
The "Posted at Pitcairn.I" straightline is not listed in Gibbons or Kitching. It is possibly unique. (Image)
SOMALI COAST, 1899, 1a on
1-1/2a Blue Postal Card. Bold "B" in grid cancel, "Zaila Somali Coast
Ap. 4, 99" circular datestamp, to Budapest, Hungary, Trieste and
Aden transits, Budapest receiving datestamps, card with slightly rounded
corners, otherwise Extremely Fine, with note stating that Zaila is the
second rarest post office of the period with the added bonus of the
destination (Image) 
THURN & TAXIS, 1866, -1/4sgr
Black, 1sgr Rose, 5sgr Lilac (27, 30, 13). Horizontal pair of -1/4sgr,
small piece out at right of right stamp (prior to use), each stamp tied by
"Grossbreitenbach 1867 13/6" double-circle datestamp on blue folded cover
to Washington D.C., red "Paid 10" in oval, transit backstamps, left
10sgr barely affected from placement at edge of cover, otherwise Very Fine,
scarce and unusual combination (Image)