1 Fals - Abū Bakr b. Muhammad

The Ildegizids, formally the atabegs of Azerbaijan, governed as nominally subordinate to the Seljuq sultans while exercising near-total autonomous power across northwestern Iran and parts of the South Caucasus. Abū Bakr b. Muhammad ruled during the dynasty's final assertive decades, before Mongol pressure began collapsing successor states across the region one by one. Copper fals from this period were local fiduciary issues — their circulation rarely extended far beyond the towns and markets they were minted for.

Album 1909 covers a type with known attribution difficulties; die workmanship varied considerably across the reign's near-twenty-year span.