British Coins and Medals, George IV, proof crown, 1826, SEPTIMO, bare head l., rev. crowned shield of arms over mantle (S.3806; ESC.257; L&S.28; KM.699), certified and graded by PCGS as Proof 64, a few minuscule ticks here and there but these are all but invisible as the eye is captivated by exquisite deep bluish grey iridescent toning; one of the most attractive examples of this crown to be found anywhere (10000-12500 GBP)