1977-78 30f on 30c "Shell", Port Vila local surcharge, lower left corner block of 4, the lower left stamp showing error "FHN" for "FNH", the lower pair very fine c.t.o. with "VILA / NEW HEBRIDES" cds, dated 11 MR 1878, the upper pair unmounted o.g. Fine and rare, SG 237/a (Image)