| Issuer | Iran |
| Year | 1989-1991 |
| Type | Circulating commemorative coin |
| Value | 50 Rials (50 IRR) |
| Currency | Second Rial (1932-date) |
| Composition | Copper-nickel |
| Weight | 7 g |
| Dimensions | 26.4 mm |
| Thickness | 2.0 mm |
| Shape and Technique | Round Milled |
| Orientation | Coin alignment ↑↓ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#1237.1a |
| Obverse description | Oil derricks and wheat inside partial gear, denomination just above center, text at top جمهوری اسلامی ایران (Islamic Republic of Iran). |
| Obverse script | |
| Obverse lettering | جمهوری اسلامی ایران ۵۰ ریال |
| Reverse description | Map of Iran with Caspian Sea and Persian Gulf, legends in Farsi. |
| Reverse script | |
| Reverse lettering | |
| Edge | Smooth with Farsi letteringi: `Bank Markazi Jomhouri Islami |
| Mint | |
| Mintage | 1368 (1989) - ١۳۶۸ - 1369 (1990) - ۱۳۶۹ - 1370 (1991) - ۱۳۷۰ - |
| Catalog ID | 1200029940 |
| Comments |
