PCGS Interpretation Bunder - 1972 10c Clad Layer Split Apart W/ Die Imparted Defect

Really good article but you have shared the wrong image to show a collar clash. The image you shared shows an off-center strike only. The point of this part of the article in the link was to show a collar clash on an anvil die. (The collar clash referenced in the article is on the reverse.)
Here is the image of the collar clash on an anvil die. (Hope I shared this properly.) The collar clash is under "ONE".


I'm not understanding what you are referring to as a "Funnel" or the rest of the "... raised channel parallel lines ..."?

Any other thoughts on the anomaly by the "Y"?

Where in a conundrum here with this coin without high magnification on my end for pics. Nevertheless - That mark on the rim IMO is mint made at K-2/3 on the obverse that you told me to investigate. It does not look anything like a collar clash that you circled - however the outside circumference of that indentation looks quite irregular and not sharp & razor like as in a typical dent that is PMD under 20-45X stereo microscope review. Its circumference is totally irregular as when viewing the circumference of a struck thru type error. That funnel is mint made IMO. In my pic this funnel appears in my image of the Coin Week article by Diamond ABOVE that indentation on the reverse (wrong side as per you - thankyou) of the coin. I was always of the opinion that this type of funnel below the field of the coin is made as initially hypothesized from a damaged die that has been scraped with a hard piece of debris sliding across its face. But on this wrong side is it coincidence that we ALSO see just for arguments sake an indentation that is mint made during the process and right above the same features is the SAME funnel design (see my computer generated image of this design in this thread) as on this PCGS coin. Just a coincidence?