I have written several articles on this bad counterfeit including ones published in Coin Week and C4's Newsletter stretching back to 2015 and actually own 2 in TPG holders. My 1st example and the "attribution marks": A friend just sent me a note about an apparent counterfeit Ryder 6 example with a 4C reverse which matches the counterfeits; actually the obverse matches as well- it is a little confusing as the die crack to the foot was removed by the counterfeiters... It would be my 3rd example if the seller accepts my offer. Link to the listing: https://www.ebay.com/itm/255546634974?mkevt=1&mkpid=0&emsid=e11060.m5215.l9734&mkcid=7&ch=osgood&euid=65421c540b3b48d7b5975c3945f83534&bu=44074346084&osub=-1~1&crd=20220522064316&segname=11060&sojTags=ch=ch,bu=bu,osub=osub,crd=crd,segname=segname,chnl=mkcid
Trying to keep up with the counterfeits is a never-ending task. It's thanks to experts like you that I'm slowly learning.
Seller responded to my note: "So assuming you are correct how would such a piece be treated by copper collectors. I just paid $340.00 for the coin a couple of days ago. Does this piece have any collector value? Thanks for the info. Larry". I responded: "Thanks; I am correct. These are deceptive current counterfeits and would have wide collector value if contemporary; I am the only one in my network who willingly bought one after proven fake. I would think you could return it to who sold it to you for a refund; unfortunately that puts another counterfeit out there- I am curious if you bought it from a dealer and who incorrectly attributed it? A friend and Colonial coin expert brought it to my attention noting the obverse didn't match the attribution and the reverse is 4C." The listing is still up...
Update; seller ended the auction after comparing his images with mine and agreed it a counterfeit. He is planning to return it to his seller who reportedly bought it at EAC St. Louis; obviously didn't see the two in my case...