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| 正面描述 | 登录 以查看详情 |
|---|---|
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | The reverse presents an intaglio portrait vignette of Christopher Polhem, known as 'The Father of Swedish Engineering', accompanied by mathematical calculations reproduced from his personal notebooks. A central landscape vignette renders the Falun copper mine together with one of Polhem's ore-hauling installations, while a gear wheel from his industrial works in Dalarna occupies the lower field. |
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| 签名 | 2001 & 2002 - Sven Hulterström & Urban Bäckström 2003 - Jan Bergqvist & Lars Heikensten 2007, 2009, 2012 & 2014* - Johan Gernandt & Stefan Ingves * not listed in catalog |
| 防伪类型 | 登录 以查看详情 |
| 防伪描述 | Portrait watermark of Christopher Polhem |
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