On Thursday, September 17, from 3:00 p.m. to 5:00 p.m., the public can meet with Mr. Sun Keqin, author of the Standard Catalog of Chinese Modern Circulating Coins and owner of Coin001.com in Beijing; Mr. Chen Haomin, founder of Coin in Coin in Guangzhou; Mr. Li Dan, founder of Peidu Silver Coin in Chongqing; and Mr. David Hall, co-founder of Professional Coin Grading Service in Newport Beach, California.