1989 Lincoln Memorial Cent - What Is Or Caused This ?

great thank you guys for the help
colleen

Let me explain my thinking.

The crack appeared to go rim to rim and the field level on the inside of the curve seems to be higher than the field area outside the curve. But the design is was still visible. This would imply that the piece of the die has broken from the rest of the die and has shifted in position but os still held in place sufficiently to impart its design to the coin. Retained Cuds typically occur on the anvil die because the piece of the die breaks loose and shifts downward but is held in place and prevented from falling away (retained) by the collar. If the piece then manages to fall away or is driven down far enough that it no longer imparts its design and it becomes a full Cud.