1796 (May 30) Entire from Percy Street, London, to a Colonel in the Irish Brigade, Dublin, redirected to Limerick with various ms rates, with neat "T. OFF" hs for the Treasury Office, applied to covers that weren't paid, very fine and scarce, similar to that listed in David Feldman's book which were in use from 1813 to 1819, #206, but with dotted oval, so possibly the earliest recorded. (Image)