Umm Al Qaiwain Very Rare 1970 Proof Silver 1 Riyal
- Source: eBay
From the tiny emirate of Umm Al Qaiwain, a silver proof 1 riyal from 1970. By far the toughest emirate to obtain coins from. The full 4 coin proof set now sells for $1500 and this coin has the lowest mintage. Some light toning. Authenticity guaranteed.