Русско-англо-русский юридический словарь

Consignment is the consigning, which is placing any material in the hand of another, but retaining ownership until the goods are sold or person is transferred. This may be done for shipping, transfer of goods to auction, or for sale in a store (i.e., a consignment shop). To consign means to send and therefore consignment means sending goods to another person. In case of consignment goods are sent to the agent for the purpose of sale. The ownership of these goods remains with the sender. The agent sells the goods on behalf of the sender, according to his instructions. The sender of goods is known as consignor and the agent is known as the consignee. (Wikipedia)

In postal mail, a return address is an explicit inclusion of the address of the person sending the message. It provides the recipient (and sometimes authorized intermediaries) with a means to determine how to respond to the sender of the message if needed. (Wikipedia)

Banks also theoretically have a disincentive to pursue faster payments because they would miss out on float income — the interest income banks make between debiting the sender of a payment and crediting the receiver. (American Banker)

return receipt: a postal receipt sent back to the sender of a piece of insured or registered mail on payment of a special fee that shows to whom and at what time the mail was delivered (Merriam-Webster Dictionary)