3 legged Buffalo or not???

But I don't see another diagnostic of die marks extending down from his belly . I still think it's real but I'd pass on this one as I'm starting to have a small doubt in it's authenticity .

 

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Well, if fake they've done a pretty decent job of duplicating the changed back contour of the real one, including the spacing away of E PLURIBUS and weakening of the N in UNUM. Desertgem's points are a must to consider - he's pretty knowledgeable of these - but the provided images don't offer sufficient detail to come to any conclusions regarding the known areas of obverse roughness.

 

The moth eaten neck on a 37-D was once a sure-fire indication the Bison probably had 3-legs. That is still a very reliable diagnostic when combined w/others mentioned here and some not; however, SOME normal 1937-D 5c have virtually the same looking neck

 

Never heard/was taught this diagnostic! Is it posted on the Internet somewhere? are you referring to the "pee."

 

That ad is a first of its kind, at least for this set of eyeballs.

 

It's been called that . It's in the PCGS Guide to Coin Grading and Counterfeit detection . By Scott Travers . Page 319 .

 

Here's all the info you need .
http://www.error-ref.com/thinning-and-loss-of-design-elements/

 

Anybody that think this isn't the real deal, LensCrafters should be your next stop, to get your eyes check ...

 

I can't believe out of 26 post, nobody posted this link ..

 

Now you're talking. Lol.

 

Thanks for letting me know the source. I'll need to look that up. For now, IF Scott calls it a die mark that's unfortunate! Another case of not being specific and changing numismatic terms for all who follow.

Technically, we can call anything that happens to a die that changes its appearance and the appearance of the struck coin a DIE MARK. That means even a rust pit that produces a raised lump on the coin is a "die mark."

That diagnostic - the "pee" is caused by die wear PERIOD. Die wear also caused the moth eaten neck.