Some lawless elements packaged their leather bag companies into non-art companies in the formal industry, and sent some salesmen to contact collectors of jade jewelry stores or antique shop owners, claiming that the company would order a batch of goods and sign a letter of intent to buy them. When it's time to pay the bill, the business personnel will inform the collector and the owner. To reach a deal, we must first give the leader some benefits, otherwise the leader will not sign it. If the benefits are paid, the criminals will do everything possible to deny the purchase intention and defraud the benefits received.

Silver dollar, commonly known as "foreign money", "foreign money" or "lace money", originated in Europe in the15th century and is the main currency of silver-based countries.