50 Fils - Isa Planchet Trial

発行体 Bahrain
年号 1965
種類 Coin pattern
額面 50 Fils (0.050 BHD)
通貨 Dinar (1965-date)
材質 Copper-nickel
重量 3.1 g
直径 20 mm
厚さ
形状 Round
製造技法 Milled
向き Medal alignment ↑↑
彫刻師
流通終了年
参考文献
表面の説明 Mint mark of the British Royal Mint
表面の文字体系
表面の銘文
裏面の説明 Mint mark of the British Royal Mint
裏面の文字体系
裏面の銘文
Reeded
鋳造所
鋳造数 ND (1965) - - 1
Numisquare ID 2266561490
追加情報

Historical Context: In 1965, Bahrain, under Sheikh Isa bin Salman Al Khalifa, initiated a pivotal phase of monetary independence. The introduction of the Bahraini Dinar and its subsidiary coinage replaced the Gulf Rupee, asserting national sovereignty. This 50 Fils "Isa Planchet Trial" signifies a crucial pre-production stage, testing the chosen copper-nickel alloy for the new currency. It reflects the meticulous planning behind establishing a robust national monetary system during a period of significant transition.

Artistry: The artistry of this 50 Fils piece, though a trial, reflects the modern numismatic aesthetic of the era, likely influenced by British minting traditions. The engraver, unrecorded, executed a design characteristic of Bahrain's early independent coinage. The obverse typically featured the national emblem or a depiction of Sheikh Isa bin Salman Al Khalifa, symbolizing identity. The reverse displayed the denomination in Arabic and English, with the date, utilizing clear Arabic calligraphy and a clean, authoritative composition.

Technical/Grading: As a planchet trial, the primary technical interest resides in the copper-nickel alloy (3.1g, 20mm). This piece was assessed for its suitability for mass production, focusing on malleability, die-fill, and wear resistance. High-points include raised elements of any central emblem, the ruler's effigy, and intricate Arabic script flourishes. A successful trial would exhibit uniform metal flow, a sharp strike, and strong cartwheel luster, demonstrating the alloy's capacity to render fine details and withstand the striking process.

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