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1889 IHC Snow-4: analysis of RPD
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<p>[QUOTE="KurtS, post: 2104330, member: 11786"]I recently picked up this variety in high AU, providing an excellent opportunity for some detailed photo analysis of the RPD. What I really find interesting on this RPD is the 9/9. Compared to most, the RPD is very deep and affects the overall shape of the digit–which will become clear with overlays.</p><p><br /></p><p>The 9/9 is far more striking in higher grades--here's the whole obverse--click to see it at 100% crop.</p><p><img src="https://farm9.staticflickr.com/8752/16797934542_631e2ec30c_o.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>I have chosen to work with grayscale variety shots, as color tends to confuse the details. From what I see, the date shows repunching on 3 digits: <b>a.</b> 1/1 south, <b>b.</b> 8/8 south, and <b>c.</b> a strong 9/9 north. The black arrows are the MPDs, some bold and others faint.</p><p><br /></p><p><img src="https://farm9.staticflickr.com/8743/16805068485_175c0a9978_b.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>As I study this RPD, the first question that comes to mind is “how is the 9/9 so strongly north, yet the 8/8 is weakly south? For this to happen with a single repunching, the 4-digit punch must be rotated around an axis closer to the 8 than the 9. To explain these positions, the date would have to be impressed similar to the overlay below. Note on my overlays–they were <i>carefully</i> traced from a high-grade 1889 IHC. The shape of the digits and their positions match closely to both MS and proof 1889 IHCs I compared.</p><p><br /></p><p>To clarify on below, the blue is the final position of the punch–the yellow is superimposed to explain the 8/8 south–notice <b>how low</b> the 1 digit would have to be? While this roughly covers the 8/8 on the outside, it doesn’t match the doubling on the inside loops, a shift which appears more linear, ie non-rotational. It’s also rather difficult to explain some things on the 9/9–due to the high rotation. Is it possible the 8/8 was a remnant of another RPD?</p><p><br /></p><p><img src="https://farm9.staticflickr.com/8699/16773175836_7a15a49101_b.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p>Here’s a second overlay, positioning the RPD to match both the 1/1 and the 9/9 (red outlines). This seems to be a more reasonable position of the first date impression–although <i>clearly the 8/8 cannot be south</i> in this case.</p><p><br /></p><p><br /></p><p><img src="https://farm8.staticflickr.com/7588/16797920171_269b3b1443_b.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>Finally, a closeup of the most interesting part of this RPD, the 9/9. The blue overlay is the final position of the 9. Without the overlays, it’s not as easy to visualize <i>how distorted this digit has become</i>. Unlike most RPDs, the 9/9 is very deep and both digits add to the outside shape, but subtract from the inner shape–resulting in a smaller top loop on the 9.</p><p><br /></p><p><img src="https://farm9.staticflickr.com/8589/16799250485_0975d85a60_o.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="KurtS, post: 2104330, member: 11786"]I recently picked up this variety in high AU, providing an excellent opportunity for some detailed photo analysis of the RPD. What I really find interesting on this RPD is the 9/9. Compared to most, the RPD is very deep and affects the overall shape of the digit–which will become clear with overlays. The 9/9 is far more striking in higher grades--here's the whole obverse--click to see it at 100% crop. [IMG]https://farm9.staticflickr.com/8752/16797934542_631e2ec30c_o.jpg[/IMG] I have chosen to work with grayscale variety shots, as color tends to confuse the details. From what I see, the date shows repunching on 3 digits: [B]a.[/B] 1/1 south, [B]b.[/B] 8/8 south, and [B]c.[/B] a strong 9/9 north. The black arrows are the MPDs, some bold and others faint. [IMG]https://farm9.staticflickr.com/8743/16805068485_175c0a9978_b.jpg[/IMG] As I study this RPD, the first question that comes to mind is “how is the 9/9 so strongly north, yet the 8/8 is weakly south? For this to happen with a single repunching, the 4-digit punch must be rotated around an axis closer to the 8 than the 9. To explain these positions, the date would have to be impressed similar to the overlay below. Note on my overlays–they were [I]carefully[/I] traced from a high-grade 1889 IHC. The shape of the digits and their positions match closely to both MS and proof 1889 IHCs I compared. To clarify on below, the blue is the final position of the punch–the yellow is superimposed to explain the 8/8 south–notice [B]how low[/B] the 1 digit would have to be? While this roughly covers the 8/8 on the outside, it doesn’t match the doubling on the inside loops, a shift which appears more linear, ie non-rotational. It’s also rather difficult to explain some things on the 9/9–due to the high rotation. Is it possible the 8/8 was a remnant of another RPD? [IMG]https://farm9.staticflickr.com/8699/16773175836_7a15a49101_b.jpg[/IMG] Here’s a second overlay, positioning the RPD to match both the 1/1 and the 9/9 (red outlines). This seems to be a more reasonable position of the first date impression–although [I]clearly the 8/8 cannot be south[/I] in this case. [IMG]https://farm8.staticflickr.com/7588/16797920171_269b3b1443_b.jpg[/IMG] Finally, a closeup of the most interesting part of this RPD, the 9/9. The blue overlay is the final position of the 9. Without the overlays, it’s not as easy to visualize [I]how distorted this digit has become[/I]. Unlike most RPDs, the 9/9 is very deep and both digits add to the outside shape, but subtract from the inner shape–resulting in a smaller top loop on the 9. [IMG]https://farm9.staticflickr.com/8589/16799250485_0975d85a60_o.jpg[/IMG][/QUOTE]
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1889 IHC Snow-4: analysis of RPD
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