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<p>[QUOTE="eddiespin, post: 5807465, member: 4920"]And to take it just a tad further, the reason for the new "doublings" starts with the die blanks, which are seated in a collar, to keep them still for the hubbing. That collar's diameter is necessarily wider than the diameters of the blank and hub, to fit the blank, and to accommodate the hub when it strikes it. There's "play" in the collar. John Wexler describes that well. The blank slides for it. The blank also jumps, and that's a little bit different a description. But my point is, it's the same exact thing as happens in strike doubling. In strike doubling, the planchet moves in the collar, in the single-squeeze doubling, the die blank moves in that collar, and its that movement that imparts that doubling. In the older double-squeeze hubbings, there are actually two distinct images, from two distinct strikes, just off from one another.[/QUOTE]</p><p><br /></p>
[QUOTE="eddiespin, post: 5807465, member: 4920"]And to take it just a tad further, the reason for the new "doublings" starts with the die blanks, which are seated in a collar, to keep them still for the hubbing. That collar's diameter is necessarily wider than the diameters of the blank and hub, to fit the blank, and to accommodate the hub when it strikes it. There's "play" in the collar. John Wexler describes that well. The blank slides for it. The blank also jumps, and that's a little bit different a description. But my point is, it's the same exact thing as happens in strike doubling. In strike doubling, the planchet moves in the collar, in the single-squeeze doubling, the die blank moves in that collar, and its that movement that imparts that doubling. In the older double-squeeze hubbings, there are actually two distinct images, from two distinct strikes, just off from one another.[/QUOTE]
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