Companies (Winding-up) Rules

141.
Filling in where creditor blind or incapable
The proxy of a creditor blind or incapable of writing may be accepted, if such
            creditor has attached his signature or mark thereto in the presence of a witness, who
            shall add to his signature his description and
residence:
Provided that all insertions in the proxy
            are in the handwriting of the witness and such witness shall have certified at the foot
            of the proxy that all such insertions have been made by him at the request of the
            creditor and in his presence before he attached his signature or mark.