Sir Rowland Hill. (From the painting by J. A. Vinter, R.A., in the National Portrait Gallery) _Frontispiece_ Examples of some Philatelic Terms:--A _Pair_ of Great Britain embossed Sixpence.--A _Pair_ of Cape of Good Hope Triangular Shilling.--A _Block_ of four Great Britain Penny Red.--A _Strip_ of three Grenada "4d." on Two Shillings 25 Examples of some Philatelic Terms:--The figures "201" indicate the _Plate Number_, and "238" the _Current Number_. The _Plate Number_ is also on each of these stamps in microscopic numerals.--Corner pair showing _Current Number_ "575" in margin.--Corner pair showing _Plate Number_ "15" in margin. The _Plate Number_ is also seen in small figures on each stamp.--The above stamps are those of Great Britain _overprinted_ for use in Cyprus 29 Examples of some Philatelic Terms:--A sheet of stamps of Gambia, composed of two _Panes_ of sixty stamps each.--The single "Crown and CA" watermark, as it appears looking from the back of the Gambia sheet illustrated above. The watermark is arranged in panes to coincide with the impressions from the plate 33 Examples of some Philatelic Terms:--A "Bisect," or "Bisected Provisional." The One Penny stamp of Jamaica was in 1861 permitted to be cut in halves diagonally, and each half used as a halfpenny stamp 37 Examples of some Philatelic Terms:--Photograph of a flat steel _die_ engraved in _taille douce_ (_i.e._, with the lines of the design cut into the plate). The stamp is the 50 lepta of Greece, issue of 1901, showing Hermes adapted from the Mercury of Giovanni da Bologna 51 Scarce Pamphlet (first page) in which William Dockwra announces the Penny Post of 1680 65 A Post Office in 1790 69 Sardinian Letter Sheet of 1818: 15 centesimi.--The 25 centesimi Letter Sheet of Sardinia. Issued in Sardinia, 1818; the earliest use of Letter Sheets with embossed stamps 89 The highest denomination, 50 centesimi, of the Sardinian Letter Sheets.--One of the temporary envelopes issued for the use of members of the House of Lords, prior to the issue of stamps and covers to the public, 1840 93 The "James Chalmers" Essay.--Rough sketches in water-colours submitted by Rowland Hill to the Chancellor of the Exchequer for the first postage stamps 99