All qualified delegates entitled to vote at a meeting of members or to express consent or dissent without a meeting may authorize another person or persons to act for them by proxy. Every proxy must be in the form specified by NYSWYSA and it shall be valid only for the items of business and the meeting specified on the proxy.  Every proxy shall be revocable at the pleasure of the member executing it, except as otherwise provided by law. Revocation shall be effective upon filing with the State Office, prior to the call to order of a meeting or prior to the action or consent taken or entered without a meeting, of a notice of revocation in the form specified by the State Office, signed and acknowledged in the manner above prescribed for proxies.