Sultan Ahmad Shah, 1327-1344 AH (1909-1925). Pattern 1/5 Toman 1339 AH (1920/1921 AD), Tehran Mint. 1.68 g. Piédfort. Struck on a thick flan. Bust type with collar. KM -. Of the highest rarity, probably the only known specimen. NGC AU58.

From the Kian collection, auction SINCONA 49, October 2018, lot 219.
From auction WAG, Dortmund, September 2010.

All known patterns of the 1/5 Toman are in bronze or gilt bronze, this is the only known example in gold.

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