a letter or power of attorney granted by any person as trustee for the transfer of any money vested in his name in the public funds or in any other securities and forming part of any funds applicable for the purposes of a supplementary scheme;

an agreement made or given for the purpose of, or in connection with, a supplementary scheme ;

the appointment or revocation of appointment of an agent, the appointment of a new trustee, and any conveyance or transfer made for effectuating the appointment of a new trustee and any other document authorised by or in pursuance of a supplementary scheme.