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[经济学人财经系列] 经济学人:防止伪造 英国新推一英镑硬币(1)
Best known for his musings on gravity, Isaac Newton also spent several years as warden of the Royal Mint, charged with upholding the integrity of the nation's coinage.艾萨克·牛顿以他对重力的冥想而最为著名,他也曾当过几年..2017-06-14 编辑:clover
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[经济学人财经系列] 经济学人:防止伪造 英国新推一英镑硬币(2)
It also boasts a hologram-like “latent image” that changes from a pound symbol to a “1” when the coin is tilted.它还具有类似全像型的“潜像”,使得当硬币倾斜时会从英镑的符号变成“1”。2017-06-15 编辑:clover