Section 17 of the Registration of Documents Ordinance, (Cap. 117), provides that a pledge, mortgage or bill of sale of movables shall not be of any force in law or give the transferee any right, etc. unless:–

• such property is actually delivered into the possession and custody of the pledge, etc., or
• such pledge, etc., is created by a written and signed instrument and duly registered within 21 days, with the Registrar of Lands.