11The company shall have a first and paramount lien on every share (not being a fully paid share) for all moneys (whether presently payable or not) called or payable at a fixed time in respect of that share, and the company shall also have a first and paramount lien on all shares (other than fully paid shares) standing registered in the name of a single person for all moneys presently payable by him or his estate to the company ; but the directors may at any time declare any share to be wholly or in part exempt from the provisions of this regulation. The company's lien, if any, on a share shall extend to all dividends payable thereon.