The famous "Stock Exchange" Forgery of the One Shilling green stamp of Great Britain.--A Genuine "Plate 6."--One specimen was used on October 31, 1872, and the other on June 13 of the next year. The enlargements betray trifling differences in the details of the design, as compared with the genuine stamp above 245 The unique envelope of Annapolis (Maryland, U.S.A.) in Lord Crawford's collection of stamps of the United States 279 Part sheet (175 stamps) of the ordinary One Penny black stamp of Great Britain, 1840. (From the collection of the Earl of Crawford, K.T.) 283 Nearly a complete sheet (219 stamps out of 240) of the highly valued One Penny black "V R" stamp, intended for official use. (From the collection of the Earl of Crawford, K.T.) 285 Part sheet (lacking but six horizontal rows) of the scarce Two Pence blue stamp "without white lines" issued in Great Britain, 1840. (From the collection of the Earl of Crawford, K.T.) 287 The unique block of the "double Geneva" stamp, the rarest of the Swiss "Cantonals." (Formerly in the "Avery" Collection, now in the possession of Henry J. Duveen, Esq.) 291 Part sheet of the scarce 5c. "Large Eagle" stamp of Geneva, showing the marginal inscription at the top. (From the collection of Henry J. Duveen, Esq.) 293 A Page of the 5 cents. and 13 cents. Hawaiian "Missionary" stamps. (From the "Crocker" Collection) 297 Hawaiian Islands, 1851. The 5 cents "Missionary" stamp on original envelope. (From the "Crocker" Collection) 299 A Page from the King's historic collection of the stamps of Great Britain, showing the method of "writing up" 307 The three copies of the unissued 2d. "Tyrian-plum" stamp of Great Britain, in the collection of H.M. the King. The one on the envelope is the only specimen known to have passed through the post 309 Design for the King Edward One Penny stamp, approved and initialled by His late Majesty. (From the collection of H.M. King George V.) 313 The companion design to that on page 313, and showing the correct pose of the head, but in a different frame which was not adopted. (From the collection of H.M. the King) 315 A Page of the One Penny "Post Paid" stamps of Mauritius. (In the collection of H.M. the King) 319 The Two Pence "Post Paid" stamp of Mauritius. Unique block showing the error (the first stamp in the illustration), lettered "PENOE" for "PENCE". (In the collection of H.M. the King) 323