The 1942 without a mint mark is the Philadelphia, so yes it's mentioned in my graphic!
I never said your graphic is incorrect.
The Denver 1942 has effectively no year line for the over date, but you can make a change request have it added.
That was the purpose of this post. After 13,000 edits I might have a slight idea of how it works.
I posted it as a request about a coin page, titled the message with 1942 D. Mentioned in the post that the Philadelphia mint IS listed and added a source that is a link to the Denver mint error.
Only thing I failed to mention was that I could not edit the page. That it directed for a request to be made. Hence this post that somehow you felt needed your input.