British Post Offices Abroad, G.B. 1867, 5sh rose. Clear full strike of Panama "C35" barred oval cancel (type 4), few perf tips added at top, F.-V.F. appearance; with 2008 A.P.S. certificate. SG No. Z109  £450 ($706). $0 (Image)

British Post Offices Abroad, Paid At Teneriffe. Exceptional strike of crown circle handstamp on 1856 folded tissue paper letter to Buenos Ayres, franked with Spain 1855, 2r reddish violet, vertical pair tied by oval grid handstamps, blue "Cadiz, 11 May, 56" origin cds, reverse with "Teneriffe, Au 16, 1856" British transit and red Santa Cruz cds's, Very Fine and choice, a rare usage via the Canary Islands. SG No. CC2; £3,750 on cover ($5,887)  Estimate $1,500 - 2,000. $0 (Image)