The mint mark is a little beat up so I can't tell for sure if is an RPM or not. RPM 001 and 002 are very similar and I think this could be either one, but with the wear/damage I'm not sure!!! What do you think?
Looks like a bit of stretched surface or machine doubling... No match on RPM - http://www.varietyvista.com/02b LC RPMs Vol 2/RPMs 1983D.htm
Yeah I checked VV before I posted the pics!!! That's why I said I couldn't tell for sure with the damage to the mint mark. Just wanted some other opinions before I wrap it up and send it on!! Thanks for the input!!!
I agree with Kurisu. A RPM if it sticks out on one place like this, I would expect to see some projection into the upper left inside space of it also. Imagine 2 D's on top of each other and one moves, the opposite side has to move also. Best of Luck, Jim
There is slight split plating, but also has the somewhat thicker device, but no separation line. I can see how one might think it is an RPM.
One or two more please. Try to light up the interior of the MM. Not certain at all, but there appears to be a arc line. I'm not trying to grandstand, but when I think I see something on a coin, I would rather spend a little more time and be certain. Thanks for putting up with an old goat's curiosity.
I think it's split plating. That was very common on early Zincolns. I'm not seeing anything that would make me believe it's an RPM
From one old goat to another I'll post more later today. I appreciate your willingness to peruse until you're sure!!
Thanks for the photos. I was looking for a definitive vertical line on the inside leg of the "D" and I do not see it. The new photos leave no doubt, IMO, the issue is displaced plating as evidenced by the ragged appearance of the material south of the "D." As stated by others, the cause of the anomaly is disturbed plating. @1stSgt22 Thank you for your patience and your fantastic photo taking method. What process/camera do you use? Many members could benefit from your method including myself. Robert
@RobertRansom Your assessment is what I expected but just couldn't get rid of it without some other opinions!!! For taking photos, I use an inexpensive digital microscope made by Koolertron. Cost is about $60.00 on Amazon!! I connect to my PC using USB and use the microscope to zoom/focus! Then I use the PC camera to snap the pic!!! If needed I provide additional lighting using the flashlight on my iPhone.
Robert, I forgot to tell you when I take a picture of the entire coin, obverse and reverse, I have to elevate the microscope then zoom in. I have found that pictures are often clearer if you have distance between the lens and the subject, then zoom or crop the image. Seems to enhance the details IMHO!
Thank you for the photos. It was a lot to ask and I appreciate your patience. If it wouldn't be too much bother, posting the model number may be helpful to those having difficulties taking quality photos and boy, there are many.
It's the Koolertron digital microscope model DM4! I think a lot of members are in the habit of just using their smart phone for photo's and that just doesn't work well for closeups, or if you try to hold the camera, coin, or both! Just MHO!!!
