Is this the die chip including wiping out the Mint Mark ? I saw the other one with a small die chip and Mint Mark.
with that large die chip, would it have caused the weak strike in front of the face at LIB (erty) and IN (god) WE (trust) areas ?
I don't think that part is from "a weak strike", since the rest of the details on the coin are fully struck. (The missing letters on the edge.) It could be a grease or debris filled die. That will cause some letters to be fully struck and others to be missing completely. The blob is cool, if it is from a die chip because it is so large.