1887 Indian Head Cent / IHC : Doubling Within Shield: Strike Doubled?

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Author	Replies: 2 / Views: 1,352
KurtS Pillar of the Community United States 5318 Posts	Posted 01/13/2008 2:11 pm Here's a closeup of a feature I discovered on the reverse of my 1887 S-1 DDO. There appear to be faint lines between the vertical bars of the shield. What would cause this: Strike Doubling or perhaps faint die doubling? There is also some doubling W of the letters, as shown in the second close up photo, but with very little serif separation perhaps that's just Strike Doubling? I'm very new at this, and would appreciate your feedback! 8) (click to enlarge both pics) Report this Post to the Staff

coppercoins Pillar of the Community United States 7629 Posts	Posted 01/13/2008 4:22 pm Probably Machine Doubling, but too hard to tell from the images provided. Your lighting needs to be moved and situated so that the shadows are on both sides of the devices, and the light area is flush with the field. Your current lighting condition is known as "side lighting" which lights one side of the devices - not good for close up images of devices. One of the ways people can tell if hub doubling exists is to compare the length of the shadows next to the doubled devices - this gives an idea of how obvious and how tall the doubling is against the field. The way to achieve this form of lighting is to move the light so that it is as close as possible to the optics through which the image is taken. The light needs to be as close as possible to "coming out of the optics" and pointing straight down at the coin. This can be very difficult, but is necessary for online attribution. Report this Post to the Staff
KurtS Pillar of the Community United States 5318 Posts	Posted 01/13/2008 4:52 pm Thanks for your feedback! Yes, I realize I'm putting a shadow on one side, but it's sort of necessary for my setup to bring out these details. Otherwise, details easily wash out with a 2-point lighting setup...from years of macro work. I'm getting a new digital microscope that should resolved details like this without resorting to these lighting measures. Thanks. Edited by KurtS 01/13/2008 4:56 pm Report this Post to the Staff
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1887 IHC: Doubling Within Shield: Strike Doubled?