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<p>[QUOTE=&quot;Hobo, post: 567846, member: 11521&quot;]David,</p><p>&nbsp;</p><p>Strike doubling (aka, machine doubling, et. al.) is not the same as a double strike. Strike doubling occurs when the hammer die chatters just after striking the coin causing some of the just-struck raised portions of the coin to be sheared off. A double strike is a coin that has been struck twice.</p><p>&nbsp;</p><p>A doubled die (a die that has doubling and produces coins with doubling every time) is an entirely different animal. </p><p>&nbsp;</p><p>If you can get your hands on a copy of The Cherrypickers Guide it has an excellent chapter on the differences between doubled dies and machine doubling. </p><p>&nbsp;</p><p>By the way, as RockDude points out, the correct term is double<b>D</b> die, not double die. A doubled die has been doubled. A double die implies there are two dies.[/QUOTE]</p><p><br /></p>

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