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[Game] World Coins Time Machine… Counting Backward by Year! (Plus Prize Coin)
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<p>[QUOTE="robp, post: 3638367, member: 96746"]You can do 1464 with an Edward IV light coinage groat (48 grain) struck from heavy coinage dies. On 13th August 1464 the weight of a groat was reduced from 60 grains to 48. The heavy coinage dies had mm. Rose. As long as a die match can be made to a 60 grain coin confirming its use prior to 13th Aug. there is a full seven and a half months to the year end (OS). The light coinage rose marked issue lasted about a year, but there are equally common new dies to replace worn out ones. With the heavy dies continuing to be used into the light coinage these must be contiguous with the weight change which wasn't accompanied by a design change.</p><p><br /></p><p>I don't have an example, but here is one. Link to the description is <a href="https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg" rel="nofollow">https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg</a></p><p><br /></p><p><img src="https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="robp, post: 3638367, member: 96746"]You can do 1464 with an Edward IV light coinage groat (48 grain) struck from heavy coinage dies. On 13th August 1464 the weight of a groat was reduced from 60 grains to 48. The heavy coinage dies had mm. Rose. As long as a die match can be made to a 60 grain coin confirming its use prior to 13th Aug. there is a full seven and a half months to the year end (OS). The light coinage rose marked issue lasted about a year, but there are equally common new dies to replace worn out ones. With the heavy dies continuing to be used into the light coinage these must be contiguous with the weight change which wasn't accompanied by a design change. I don't have an example, but here is one. Link to the description is [URL]https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg[/URL] [IMG]https://www.coinarchives.com/d8372df23a308bfc6db61b3b8a4d120d/img/dnw/160/image00779.jpg[/IMG][/QUOTE]
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[Game] World Coins Time Machine… Counting Backward by Year! (Plus Prize Coin)
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