Gazni or Kurraman?

358, Lot: 464. Estimate $500. Sold for $850. This amount does not include the buyer’s fee.

ISLAMIC, Mongols. Great Khans. temp. Chingiz (Genghis). AH 602-624 / AD 1206-1227. AR Dirhem (17mm, 3.14 g, 5h). No mint (prob. Gazni or Kurraman). “'adl / khaqan / mu'azzam” in three lines; border of large pellets between two lines / “al-Nasir/al-Din Allah/Commander of the faithful” in three lines; border of small pellets between two lines, all within outer line. Cf. Tye 330 (for obv. [Kurraman]), Tye 327 (for rev. [Gazni]), otherwise unpublished in the standard references. VF, lightly toned, obverse off center, reverse light double strike. Very rare.

Ex Album 14 (21 September 2012), lot 627.

The obverse is of the same type and style as the Kurraman-signed jitals, which led Album to attribute the issue to Kurraman, but the calligraphy on the reverse is an exact match as the Gazni dirhems. Perhaps an obverse die transfer from Gazni to Kurraman, or a reverse transfer from Kurraman to Gazni?