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Showing results for tags 'authentification'.
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I'm fairly new to coins, and the only reason I ask is because the size of this in hand is a bit bigger than my other half crowns of the period, which all seem to be around 32-33mm. It seems to sit at around 34-34.5mm. It weighs 15/16grams on my (cheap!) kitchen scales, is non magnetic, and has the correct side inscription - DECVS ET TVTAMEN ANNO REGNI DECIMO NONO.
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I purchased this 1745 George II LIMA half crown on eBay for £170 and have been looking into its authenticity. The coin measures 33.24mm on the 12 to 6 axis and 34.54mm on the 9 to 3 axis, meaning a slightly oval flan. Thickness is 1.98mm and weight is 14.94 grams. I recently measured a second LIMA half crown in person, which measures almost identically (33.50mm from 12 to 6 and 34.32mm from 9 to 3) suggesting the oval may be a characteristic of this type (?). Under loupe examination, the reverse fields show what appears to be a genuine aged surface, with scarred pitting, micro abrasions, and contact marks across the surface. Edge inscription is legible throughout and doesn’t show any clear evidence of fillings or any seams. I don't have access to a silver tester, but I am fairly certain it is silver. The main discussion points I've had are the sharpness and the relief, particularly of the reverse, along with the slight reddish coloration (though I think my photos overstate this) and overall large-ish and oval diameter. I’m happy to provide any additional photos or closeups. Authentic or not, what do you guys think?
