1837c THIRD OFFICIAL FREE HANDSTAMP (O3) on folded wrapper from Cape Town to Swellendam bearing the facsimile signature of "John Bell, Sec. to Govt"and also annotated "On Service" with the manuscript signature of "J Spyker", all instances authorising the free postage. One of the scarcest Cape markings, seldom seen, even in the major collections. Rare.