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<p>[QUOTE=&quot;SPP Ottawa, post: 1727515, member: 39508&quot;]As a long time collector of 1-cent (Canadian small cent) errors, I concur with the others. Physics of striking the coins is similar regardless of whether it is a US copper cent or a Canadian copper cent. When coins are struck through grease, while you do see elements of the devices, they are generally subtle and the surface of the affected area is generally uneven. The fact that the rippling phenomena affects the devices (which only form by flow of metal into the incuse die surface) speaks to me that this is not a mint error - the physics of metal flowing perpendicular to the point of highest force (i.e., die face), which gives us the cartwheel lustre in the fields and forces metal into the devices, does not make sense to form the surfaces such as we see in your coin (basically, what Mike said earlier).</p><p><br /></p><p>The rim speaks volumes to me. Coins are rimmed prior to the strike, forming Type 2 planchets. Then, when the coin is struck in collar, with or without grease or other elements on the dies, the rim basically comes out clean and sharp. Now, we could exclude ragged or clipped planchets, and other odd features like &#039;rim fins&#039;, on your coin. Something has impacted that rim, post-strike, to deform and push metal out, or over, into the fields. </p><p><br /></p><p>The rim does look like a commercial dryer coin. Now, &quot;dryer coins&quot; are not what you think they are. They are not formed from excessive heat or tumbling around with cloths inside the inner drum of the dryer. It is when coins get caught between the inner and outer tubs of commercial front loading dryers. I realize this link is on another coin forum, but if the moderators allow it, it is one of the better explanations for dryer coins. The person who created that thread, had family that worked, sold and refurbished commercial machines for laundromats - these are coins pulled out of the machines. Some very cool extreme examples.</p><p><br /></p><p><a href="http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=143863" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=143863" rel="nofollow">http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=143863</a></p><p><br /></p><p>As for the surfaces of your coin, I am still digging for an online source. But, if it was struck through grease, then the planchet weight should be exactly within specifications. If it is an acid-affected coin (which I think it is), then it should be lighter... have you weighed it with a good digital scale??[/QUOTE]</p><p><br /></p>

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