Error Experts.....Die cracks and extra metal left...

Hey Experts,
I have searched many 2003p Lincoln rolls this year and would appreciate your opinions on this issue. I have come across a roll that has numerous die cracks on the reverse and on several coins the cracks lead to "extra metal" within(or on the outside)of these cracks that look like rim cuds. Extra metal has been deposited somewhere along the cracks. What is this technically called? I have 8 coins exactly the same with the above mentioned point plus they have a bridge of "melted metal" between the N and U in UNUM on the reverse. Again, there are 8 coins that are exactly the same with these traits. Any ideas how this happened? Just a simple cracked die?.......are the 2003 cracked dies worth collecting? I have never seen 8 coins match with the same problem or error if you wish. Thanks for your help.
Chris
I have searched many 2003p Lincoln rolls this year and would appreciate your opinions on this issue. I have come across a roll that has numerous die cracks on the reverse and on several coins the cracks lead to "extra metal" within(or on the outside)of these cracks that look like rim cuds. Extra metal has been deposited somewhere along the cracks. What is this technically called? I have 8 coins exactly the same with the above mentioned point plus they have a bridge of "melted metal" between the N and U in UNUM on the reverse. Again, there are 8 coins that are exactly the same with these traits. Any ideas how this happened? Just a simple cracked die?.......are the 2003 cracked dies worth collecting? I have never seen 8 coins match with the same problem or error if you wish. Thanks for your help.
Chris

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Comments
be nice to see pics.
These are, for the most part, not super vaulable, but they are very collectible.
The more extreme looking, the better value I think.
If it were to be labled a die-break it may have more value.