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預售

2020圖瓦盧運轉中的工業 .9999齒輪型銀幣1盎司2枚套裝

2020圖瓦盧運轉中的工業 .9999齒輪型銀幣1盎司2枚套裝

2020圖瓦盧運轉中的工業 .9999齒輪型銀幣1盎司2枚套裝
低至:
HK$2,124.00
2124 HKD

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HK$2,124.00

HK$2,236.00

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Buy or sell 2020圖瓦盧運轉中的工業 .9999齒輪型銀幣1盎司2枚套裝 at the best price online from LPM. Bulk & payment discounts apply!

This Industry in Motiontwo-coin set celebratesthe evolution of industry and machinery. Struck by The Perth Mint from 1oz of 99.99% pure silver, each innovative gear-shaped coin is issued as legal tender of Tuvalu.

The cogwheel, also known as a cog or gear, was a device fundamental to the development of machinery. The rotating machine part with cut teeth is considered one of the oldest pieces of equipment known to man, dating back to before the ancient Greeks. It was first referenced by mathematicians and engineers including Aristotle as early as the 4thcentury BCE.

The cog was one of several mechanical components that truly came into their own during the Industrial Revolution. In 1835 the English inventor Joseph Whitworth patented the first gear ‘hobbing’ process to cut spiral gears, generating for the first time these ‘involute’ gears commercially. This led to the invention of hobbing machines capable of cutting gears as advancements in industry continued into the 20thcentury. Synonymous inthe modern world with engineering, progression and history, the gear has become an icon of industry.

Struck by The Perth Mint from 1oz of 99.99% pure silver, each gear-shaped coin isissued as legal tender under the authority of the Government of Tuvalu.

The Perth Mint will release no more than 1,500 of the 2020 Industry in Motion 1oz Silver Gear-ShapedAntiqued Two-Coin Set.

Each coin has been individually ‘antiqued’ to give it a unique finish conveying the surface abrasions of an industrial artefact. As a result of this treatment, the appearance of each coin may vary.

 

Design

The reverse of each gear-shaped coin depicts several toothed cogs ascending in size from the centre of the coin.

Each coin’s obverse bears the Ian Rank-Broadley effigy of Her Majesty Queen Elizabeth II, the year-date, weight and purity, and monetary denomination.

Presentation

The two-coin set is presented in an acryliccase with a mechanism to rotate the coins. The case sits within a themed shipper and is accompanied by a numbered Certificate of Authenticity.

附加信息

年份 2020
金屬含量 白銀
面值 $1
純度 9999
品質 復古
國家 Tuvalu
生產商 The Perth Mint
發行量 1,500
直徑 (mm) 38.50
厚度 4.10
邊緣 坑紋
包裝及證書 Yes

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