20 Francs Mamenchisaurus

发行方	Democratic Republic of the Congo (1997-date)
年份	2020
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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
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方向	Medal alignment ↑↑
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
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正面铭文	REPUBLIQUE DEMOCRATIQUE DU CONGO JUSTICE PAIX TRAVAIL 1 oz Ag 999.9 20 FRANCS
背面描述	登录以查看详情
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背面铭文	PREHISTORIC LIFE MAMENCHISAURUS 160-145 MIO YEARS BC 2020 TRIASSIC 250-200 MIO. YEARS BC JURASSIC 200-145 MIO. YEARS BC CRETACEOUS 145-66 MIO. YEARS BC
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附加信息	The Mamenchisaurus is a sauropod genus known almost entirely from Chinese fossil sites, with some specimens preserving necks that account for more than half the animal's total body length — among the longest cervical proportions of any known vertebrate. The Democratic Republic of the Congo has issued a sustained run of natural history-themed silver pieces under its numismatic program, which operates essentially as a revenue-generating export product; circulation within the DRC itself is negligible.

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