2 Shillings Blank Planchet, Trial Strike

发行方	British West African Currency Board
年份	1937-1938
类型	Coin pattern
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重量	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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背面描述	Blank reverse field entirely devoid of any design, inscription, or devices, presenting an unadorned brass surface typical of a trial planchet or uniface test piece. The raised rim is continuous and well-formed around the full circumference, demonstrating the use of a restraining collar during striking. Fine flow lines and scattered contact marks are visible across the field, indicative of the milling process. The surface displays a warm golden-brass tone with age-related patination.
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铸币厂	登录以查看详情
铸造量	ND (1937-1938)
附加信息	The British West African Currency Board operated as a currency union spanning Nigeria, Gold Coast, Sierra Leone, and the Gambia — a single monetary authority managing coinage across four separate colonial territories. The 1937–38 period coincided with a transition in composition for the florin-sized two-shilling piece, as the Board moved away from earlier cupro-nickel specifications. Blank planchets and trial strikes from this phase document the testing of brass as a replacement alloy before full production was authorized through the Royal Mint and its contracted facilities. Pre-production trials of this kind rarely escaped the mint. That this one did is the more interesting fact.

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