…loan could be valued at $200 million, said Beverly Schreiber Jacoby, who has done art appraisals for borrowers and lenders for 25 years and who reviewed the filing but hasn't seen the works in person. Schreiber Jacoby in 2010 testified as an expert in a high- profile dispute between Christie's and CNET Networks Inc. founder Halsey Minor concerning the value of a collection of Richard Prince paintings. Wynn, through his spokesman, said the estimate was inaccurate but declined…