This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be India.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
Care is needed by re-users of signature images. Signatures are still protected by forgery, counterfeiting, and other fraud laws, and may possibly be subject to trademark protection (even if no {{Trademark}} disclaimer has been applied). Lack of copyright protection is no defense if non-copyright laws are broken and, as always, it is for the re-user to ensure that the proposed re-use is allowed under local law.
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