1965 Quarter is it missing something?

Be nice to Vince @Van Gogh, he's having a heck of a time wearing a mask when he's out in public.

 

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You will see that in the 1965 coinage act report. In the D- pages...

 

Final Report on a Study of Alloys Suitable for Use as United States Coinage 1965 ... Page 34 shows the edge rolling test outcomes for die trials, matches that

 

@TrailWalker Would you please post a copy of that page. The YouTube video doesn't open. I get the message "An error occurred...." Thank you

 

https://books.google.com/books/abou...y_of_Alloys_Suitab.html?hl=de&id=P9AcAAAAMAAJ

 

@Van Gogh. I appreciate and thank you for posting the report. After looking at the Results of coin striking trials (page D-5), I'm under the impression that different materials were tested. None that I looked at were of the same composition that the US Mint currently uses in producing clad quarters. Therefore, IMHO the results can't be used for comparison to the coin you posted. Someone please correct me if I am mistaken and let me know where I misunderstood the report. Thank you.
PS. I have to agree with the majority re the acidic environment.