Section Text
Provided that the owner of the copyright shall not be entitled to any remedy in respect of the conversion of any infringing copies, if the opponent proves— (a) that he was not aware and had no reasonable ground to believe that copyright subsisted in the work of which such copies are alleged to be infringing copies; or (b) that he had reasonable grounds for believing that such copies or plates do not involve Section 59 - infringement of the copyright in any work