Exhibit 99.1

Joint Filing Agreement

The undersigned agree that the foregoing Statement on Schedule 13D/A, dated June 6, 2014, is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k).

Dated: June 6, 2014
 
 
AFINSA BIENES TANGIBLES S.A. EN LIQUIDACION
     
  By: /s/ Javier Díaz-Gálvez de la Cámara
  Name:  Javier Díaz-Gálvez de la Cámara
  Title: Trustee
     
     
  By: /s/ Benito Agüera Marín
  Name: Benito Agüera Marín
  Title: Trustee
     
     
  By: /s/ Carmen Salvador Calvo
  Name:   Carmen Salvador Calvo
  In representation of Tesoreria General del la Seguridad Social
  Title: Trustee
     
     
  AUCTENTIA, S.L. 
     
     
  By:   /s/ Javier Díaz-Gálvez de la Cámara
  Name: Javier Díaz-Gálvez de la Cámara
  Title:  Joint Administrator
     
     
  By: /s/ Benito Agüera Marín
  Name: Benito Agüera Marín
  Title:  Joint Administrator