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1 Rial - Mohammad Rezā Pahlavī
| Issuer | Iran |
| Year | 1977-1978 |
| Type | Standard circulation coin |
| Value | 1 Rial (1 IRR) |
| Currency | Second Rial (1932-date) |
| Composition | Copper-nickel (75% Copper, 25% Nickel) |
| Weight | 1.75 g |
| Dimensions | 18 mm |
| Thickness | |
| Shape and Technique | Round
Milled |
| Orientation | Coin alignment ↑↓ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | KM#1172 |
| Obverse description | Value within crowned wreath, `Aryamehr` added to legend |
| Obverse script | Arabic |
| Obverse lettering | محمد شاه شاهنشاه ایران
١
ريال
۲۵۳۶ |
| Reverse description | Radiant lion holding sword within crowned wreath |
| Reverse script | Arabic |
| Reverse lettering | یک
ریال |
| Edge | Reeded |
| Mint | |
| Mintage | 2536 (1977) - ۲۵۳۶ - 71 150 000
1357 (1978) - ۱۳۵۷ overdate variety exists -
2537 (1978) - ۲۵۳۶ (`6537` date error) -
2537 (1978) - ۲۵۳۷ -
|
| Catalog ID | 4515422670 |
| Comments | |
