This is the only coin series I know that is shaped like a Celtic cross excellent detail. This SPECTACULAR 3 Oz Silver coin is dedicated to the warrior queen BOUDICA. The coin has a beautifully shaped as a Celtic cross thanks to the Smartminting technology, has a wonderful design, has an Antique Finish quality and comes in a case, along with the Certificate of Authenticity. Limited Mintage Of 999 Pieces Worldwide. Country: Isle Of Man. Weight: 3 Oz – 93.3g. Mintage: 999 Pieces WORLDWIDE. Finish: ANTIQUE FINISH N HIGH RELIEF.