If you are trading ancient coins, it is usually an informal company that asks you to make an appraisal. By overestimating the auction price, you cheated out of the high appraisal fee. Such informal companies are mostly concentrated in Shanghai, Beijing, Guangdong, Shenzhen, Hong Kong and other places. Generally, auction companies are transactions with relatively large value. This kind of coin is also the best to participate in the auction, which is convenient and fast. Domestic auction belongs to the mode of price increase auction, and the price will be fairer after the transaction. If the value of coins is not very large, the appreciation potential is generally weak, so they are generally bought by auction, because the auction company does not accept them. Dozens, hundreds and thousands of transactions are simply not enough for the company's transaction costs. Therefore, it is suggested to find a cultural market privately or the stall owner to trade on his own.
I feel that the better companies are: Jinghua Guardian, Poly Chengxuan, Rong Baozhai and Shi Kuang; Qingdao collection auction; Shanghai Duoyunxuan; Hangzhou Xiling; Guangdong chongzheng.