1958 D LWC Split Die

In the 1973-D nickel, 1981-P nickel, and 1978-S dime, the "arms" of the split disappear into a die subsidence error. For the 1981-P nickel, the arms are so wide that I can't conceive that this could be anything other than a split die (they also show no signs of pinching out). For the other two coins, I can't determine if these are splits or radial, antipodal die cracks that fail to meet in the center. The southeast arm in the dime is pinching out, so I suspect this is not a split. However, there is more than one explanation for the appearance of a die crack pinching out. While it's likely the crack is simply being stopped from propagating when it encounters the softer metal in the zone of subsidence, it's also possible that the softer metal is closing up a genuine split. Lots of uncertainties with these errors. Of course, the grading services will label all of them split dies, as they don't do nuance.

Amazing to fund such a unique error after all these years! Nice coin too :)