2500 Dobras Hummingbird hologram

发行方	Banco Central de São Tomé e Príncipe
年份	1998
类型	登录以查看详情
面值	登录以查看详情
货币	登录以查看详情
材质	登录以查看详情
重量	登录以查看详情
直径	登录以查看详情
厚度	登录以查看详情
形状	Round
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雕刻师	登录以查看详情
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正面描述	登录以查看详情
正面文字	登录以查看详情
正面铭文	登录以查看详情
背面描述	The reverse features a vibrant holographic insert centrally placed within the coin, depicting a hummingbird in iridescent blue and green tones in flight, approaching a large tropical flower rendered in teal and black. The hologram produces shifting color effects — predominantly greens and blues — depending on the viewing angle, a hallmark of the holographic technology applied to this commemorative issue. The surrounding border is plain gold, framing the holographic element without additional lettering or inscription.
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背面铭文	登录以查看详情
边缘	Reeded
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附加信息	São Tomé e Príncipe issued this piece during a late-1990s wave of gold commemoratives aimed squarely at the collector export market — the domestic economy ran on the dobra at rates that made gold coinage entirely ceremonial. The hologram element was a novelty feature popular with certain Franklin Mint-adjacent producers of the period, more marketing device than minting tradition. KM#83 is a low-mintage issue with limited auction visibility, suggesting a small and possibly unsold remainder.

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