“N.Y. live poultry exchange. A view of board room during a trading session showing section of board, discussion by members and private telephone of each receiver connecting with West Washington Market stand and with the terminals”

By an unknown photographer, New York City, New York, December 19, 1928

Commodity exchanges are markets for buying and selling large quantities of agricultural products for a fixed price at a future date. Wider use of modern communication tools in business such as the telephone, expanded markets and made them more responsive to economic trends.

National Archives, Records of the Bureau of Agricultural Economics (83-ML-11-18649)