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Showing results for tags 'authentification'.
Found 3 results
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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?
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I am intrigued when I hear members ask or suggest that a coin "should be sent to the royal mint for authentication" ...of course they would have all that was needed to verify the trueness of a coin , but what is it they have that any other collector might not have? Presumably they are not likely to want to spend any time or effort to authenticate a coin considering the replies recently on a point of clear information (how many of X coin were minted in X year) How difficult is it to have this information on a computer? But I am keen to know what they would do , weigh it, measure it, glance at it, I am sure they are not likely to send it away for scientific analysis. I suppose they might just have a spectrometer but if I recall when using one of these it would not come cheap. So considering they will only be doing the exact same thing any one of us could do sitting in the rectory or in your spare room.....why bother to send it? What I find difficult to accept is the statement of authority seems a little disproportionate if only minor expenditure of time and money is their duty. What else could they be doing to authenticate? any ideas ?
