Watch List notes:

World Coins, Egypt, Fuad I, silver pattern 10 piastres, AH 1348/1929CE, struck at the Royal Mint, London, on a small thick flan, military bust l, initials PM (Percy Metcalfe), rev. value and date above central circle, 27mm., wt. 12.98gms. (KM.-), light dull grey surfaces, extremely fine, unpublished - of the highest rarity
See footnote to previous lot. It is also worth noting that Hanafy makes no reference to the production of patterns for the 10 piastres or indeed for any of the other denominations.
($6000-8000)