| In September the Estate of Jean-Michel Basquiat and the Keith Haring Foundation stopped authenticating works by the two late artists. |
| Even if an engagement ring comes with a certificate authenticating the stone, this is no guarantee of the market value. |
| Can any of your readers furnish me with the means of authenticating this supposition? |
| So the power of the authenticating agent in the art world is predictably vast. |
| Service Canada employees are responsible for accurately and securely identifying and authenticating a person's identity. |
| Such authority or notary shall issue a certificate authenticating the declaration on oath or the solemn declaration. |
