May have an unknown error coin

Came across a 2009 Delaware Puerto Rico State quarter missing cloud on both sides maybe even a die crack slight doubling even not sure of the last of it but definitely the cloud layer is missing could not find any info online
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I apologize for the misspelling supposed to say clad layer missing
Not much anyone can say without photos, please upload some in a few days. As a new member you have to wait a few days before you are able to.
My Collection of Old Holders
Never a slave to one plastic brand will I ever be.
@Coinmojo75 ... Welcome aboard... We look forward to seeing your pictures. Cheers, RickO
What is a Delaware Puerto Rico State quarter? Is one side Delaware and the other side Puerto Rico?
Probably stripped with acid.
...or environmental damage from being buried.
Thank you for your information I appreciate it