I just pulled 4 1958 D LWC's from my accumulation that seem to be RPM-001. I am posting them here for comments.
Without being able to zoom on the photos or see any of the die markers, I'd say it looks pretty good just based off the mm http://varietyvista.com/02a LC RPMs Vol 1/1958DRPM001.htm
Thanks @furryfrog02. I am searching them now for the die markers. The markers on this particular variation are very fine and take time to make positive ID.
@furryfrog02 Here is another with the Shoulder to Rim mark. They are all very light as the description states.
These die markers are very light and difficult for me to photo. I believe I have confidence in the 4 coins being RPM-001. Please push me if I am wrong.
No I believe you missed my point it is a crack yes also possible to be a marker....does your specimen match the others in references?
It is called a "light die crack shoulder to rim" in the description. I posted photos of two of them. Other references such as the position seem to be correct.