Tanka - Jahanshah countermarked type
| Issuer | Tribal federation of Qara Qoyunlu |
|---|---|
| Year | 1467 |
| Type | Standard circulation coin |
| Value | 1 Tanka |
| Currency | Tanka (1375-1468) |
| Composition | Silver |
| Weight | 4.83 g |
| Diameter | 20 mm |
| Thickness | |
| Shape | Round (irregular) |
| Technique | |
| Orientation | Variable alignment ↺ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | Mitch WI#2371, A#2494 |
| Obverse description | Countermark |
|---|---|
| Obverse script | |
| Obverse lettering | |
| Reverse description | |
| Reverse script | |
| Reverse lettering | |
| Edge | |
| Mint | |
| Mintage |
871 (1467) - - |
| Numisquare ID | 2104489490 |
| Additional information |
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Historical Context: This silver Tanka, issued in 1467, represents a critical numismatic artifact from the twilight years of Jahanshah, ruler of the Qara Qoyunlu (Black Sheep Turcomans). As the last significant independent ruler of his dynasty, Jahanshah faced escalating pressure from the rival Aq Qoyunlu under Uzun