2l. BROWN ON STRAW: The amazing gathering of 4 copies of this most elusive rarity including an example mounted on card bearing handwritten note and signature of P.L.Pemberton (the man who made the discovery of this rarity) stating: "one of the finest copies in existance of this great rarity." The stamps are on the original exhibition page together with 2 normal shades to show the diferrence and all have domewhat different shade. A life-long achievement of a great collector! (Hellas 10Ia)