Meaning of silent trade in English:

silent trade

noun

historical
  • A system of trade in which goods are exchanged without the parties encountering each other.

    In this system of trade, the first party leaves goods in a specific location and then withdraws. A second party then leaves the goods it wishes to exchange in the same location and withdraws. If the first party agrees to the trade, it takes the goods offered by the second party, before the second party returns and takes those offered by the first party. If the first party does not accept the exchange, it leaves the goods and withdraws again to allow the second party to alter its offer.

Origin

Late 19th century.