1821 Great Britain: 1921-22 Shackleton-Rowett Expedition: GB 1912-24 KGV ½d green, blk of 4, upper pr with "TRISTAN DA CUNHA" cachet & lower pr with "GOUGH ISLAND" cachet SE-TENANT TOGETHER ON ONE BLOCK!, with central "S.R ANTARCTIC / EXPEDITION 1921" cds. VFU, perfs reinforced. Great rarity as a se-tenant blk with only 2 recorded! 2010 Ceremuga photo-cert. (P) $1000 $1500
1822 Great Britain & Australia: 1921-22 Shackleton-Rowett Expedition: GB 1912-24 KGV 2d orange with clear "ENDERBY LAND" cachet & full "S.R ANTARCTIC / EXPEDITION 1921 / 8 SP 21" cds applied before start of the voyage. Great rarity as the expedition never reached Enderby Land, & this h/s not used again apart from few other strikes made before the voyage -this is the UNIQUE example of the 1½d recorded! 2010 Ceremuga AIEP photo-cert. (P) $1000 $1500
1823 Italy: 1926 North Pole Flight Amundsen-Ellsworth-Nobile Zeppelin stamp showing airship over pole & route map, horiz cnr IMPERF pair, left stamp INVERTED centre due to frame cliche being inverted, plus with blue (oceans) DOUBLE, & brown (continents) totally omitted. VF UN. Spectacular & extremely rare error combination. (2) (P) $350 $500
1824 Norway - Bouvet Island: 1934 "BOUVET OYA" opt on Norway 10o & 20o. Superb postally U on piece with appropriate "Cape Town Paquebot 28 Feb 34" cds from the return voyage. Facit BO3 & BO4. Only 999 & 799 printed (of which 305 & 261 were used). Very attractive & rare item. 2010 Ceremuga photo-cert. (P) $600 $900