1889 IHC Snow-4: analysis of RPD

Discussion in 'Error Coins' started by KurtS, Mar 13, 2015.

  1. KurtS

    KurtS Die variety collector

    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]

    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: a. 1/1 south, b. 8/8 south, and c. a strong 9/9 north. The black arrows are the MPDs, some bold and others faint.

    [​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 carefully 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 how low 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]


    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 clearly the 8/8 cannot be south in this case.


    [​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 how distorted this digit has become. 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]
     
    tommyc03 likes this.
  2. Avatar

    Guest User Guest



    to hide this ad.
  3. Paddy54

    Paddy54 Well-Known Member

    Kurt you got a good eye for finding great varieties .
     
    KurtS likes this.
  4. Treashunt

    Treashunt The Other Frank

    Nice one, and a great write up.

    Thanks for posting.
     
    KurtS likes this.
Draft saved Draft deleted

Share This Page