“Handle” or “handling” means to market, pack, sell, consign, transport, or ship, except as a common or contract carrier of walnuts owned by another person, or in any other way place walnuts, inshell or shelled, into commerce either within the area of production or from the area of production to any other point outside thereof, or for a manufacturer or retailer within the area of production to purchase directly from a producer. “Handle” or “handling” does not include sales and deliveries within the area of production by producers to handlers, or between handlers.