The right side is showing die wear. Note you can see the same event on the outside of the building looking at the left edge of the image.
http://www.varietyvista.com/05%20JN...4DRPM001.htm
Note on this image the two definite punches of the mintmark punch? We call that spread. If no spread is not present, it is a normal RPM. (On your example you are looking at die wear, not mintmark punch spread)
http://www.varietyvista.com/05%20JN...4DRPM004.htm
Note on RPM-004: The curve/spread on the lower SE corner of the mintmark. That is the RPM because it has spread from the mintmark punching.
http://www.varietyvista.com/05%20JN...4DRPM001.htm
Note on this image the two definite punches of the mintmark punch? We call that spread. If no spread is not present, it is a normal RPM. (On your example you are looking at die wear, not mintmark punch spread)
http://www.varietyvista.com/05%20JN...4DRPM004.htm
Note on RPM-004: The curve/spread on the lower SE corner of the mintmark. That is the RPM because it has spread from the mintmark punching.





















