Great Northern Railway 1907 2d grey-green

Great Northern Railway 1907 2d grey-green of the 1907 printing with imperforate right margin used on part wrapper to New York (against regulations; valid only for inland letters!) with Edward VII 2½d, cancelled with superb violet LURGAN PARCELS, both stamps cancelled on arrival in London, tied by a neat machine cancel of AUG 11 08. The 2½d value is seldom found used in conjunction with railway stamps; this item to North America representing a major rarity. DeLacy-Spencer #10, Hib. R95.
An imortant Exhibition item worthy of a place in even the most advanced collection of Railway stamps.