The local civil registrar shall require the payment of the fees prescribed by law or regulations before the issuance of the marriage license. No other sum shall be collected in the nature of a fee or tax of any kind for the issuance of said license. It shall, however, be issued free of charge to indigent parties, that is those who have no visible means of income or whose income is insufficient for their subsistence a fact established by their affidavit, or by their oath before the local civil registrar. (65a)