Assuming this specimen exhibits the other diagnostic markers of RPM#28 (and it appears the diagnostic die scratch from the tail of the 5 is present) I believe this specimen proves that the alleged misplaced mint mark at the edge of and into the lapel is not the result of a misplaced mint mark and is misdiagnosed as such.
It's mechanically impossible to punch any character (with a rigid punch) across the edge of any device and field and have the result be consistent in width across the field, on the edge of the transition of the field and device (root of the transition on the coin) and into the device. Simply can't be done.
Further if the punch were level to the field when struck, and struck hard enough to transfer the impression all the way into the device the result of the punch in the field would be exponentially deeper and fatter and would taper down as it enters the device.
Lastly, in the image provided, it appears that if anything the anomaly in the highest part of the effected devise is slightly wider than it is in the field. If this is in fact the case on the coin it further supports the impossibility of having been created by a rigid punch. Even if the die had been polished so aggressively at some point in time as to minimize the re-punching result in the field the transition to the device would be heavily tapered.
I lean towards this being the result of something (a piece of wire maybe) being struck at some point and scarring the die.
Beyond being a great find I feel this specimen is a very important and educational find.
This is positively not RPM#6. The mint mark is in the wrong location.
Going by the images posted:
In my opinion this is MD. The common "at a glance" tell-tale is circled in this edited copy of your posted image. I expect with a bit of research about MD while focusing on this feature of your coin will prove educational. Hope this helps!
Great to hear from you! How are you? Hope all is well with you and yours.
If I may lend a bit of unsolicited advice: You appear very passionate and eager. You need absolutely nothing else to succeed in numismatic knowledge. Just always remember, nobody is ever always right and nobody is ever always wrong.
Take your time, learn slow and learn facts, not opinions. In no time you'll be answering questions!
I'd guess most here would agree that it's really great to see your passion and interest in acquiring knowledge. It's like the passion coop exhibits! The hobby needs as much of that as it can get!
Great find, congrats! That's not crud or glue or any foreign matter. The individuals that posted it's a retained cud are correct.
Also, just FYI it's not that "AMERICA" is flattened out. The lack of "AMERICA" is because there's no metal available to flow into that part of the die because the metal is used filling the break in the obverse die. You may already know this but if not, maybe it helps!
Question please: I've seen you post several times that (seemingly) you believe that extra thickness on devices is a required identification for coins struck by a doubled die. Would you please educate me on why you believe this to be true?
Thank you for your anticipated time, effort and education.
I have a question for coop: I've seen you post at times, as here, that enlarged devices are (seemingly) a necessary identification for a doubled die. If so would you please enlighten me as to why you believe this to be true? Thank you!
Petespockets55: Definitely a doubled die, nice find! I have a couple of the same variety. Mild but still nice. You have a great eye!
Thank you to everyone for the kind words. I can't express the value these nice comments have to us. It's what makes the hard work rewarding.
Adam E.: We're thrilled you love the coin. We expected you would. We did too...which is why we owned it for many years!
Yes, we love to make money just as anyone does. The difference between us and many is we feel money should always be the byproduct of a job well done....and no job is well done unless the customer is satisfied! We value the pride of integrity far above the acquisition of a paper dollar.
More than hoping collectors will buy from our site we hope they'll simply visit now and then and find enjoyment in it. We work very hard to make it a fun place to visit with nice (accurate) images and video of coins. We strive to build mutually beneficial relationships, not piles of cash. Wealth comes in many forms.
We genuinely appreciate the opportunity we've been afforded to be a part of this great forum. It's so refreshing to be sharing with true collectors.
Back in 1985 I opened my first metal fabrication shop. Back then companies and salesmen worked to "earn" business. I remember a (I think) Pexto salesman coming by to demonstrate and pitch a bench-top slitting machine. I remember one of his demonstrations was setting the slitters narrow and running pennies through it. The resulting shards looked very similar to what you posted here.