Dear Haruthai:
Good afternoon! Hope you had a nice weekend.
In fact we had contacted Dr. Anheuser before regarding your artwork of Zhang Xian, please kindly see the enclosed email conversation for your reference. Since this work need to go through our further investigation and studies, we have tried to contact the Liu Hai-Su museum in order to get more information. However, we have not heard back from them as well.
Thanks for your understanding! Hopefully, we can get back to you soon.