Specifically, in historic federal agricultural marketing records, the identifier has been associated with Peaches grown in certain regions (such as Mesa County, Colorado).
Rules. Oranges (Navel) grown in Ariz. and designated part of Calif. ___ 52057. Potatoes (Irish) grown in Calif, and Oreg__________ GovInfo | U.S. Government Publishing Office (.gov) highlights - GovInfo 52047 rar
Based on the technical identifier provided, "52047" appears to refer to a specific regulatory or classification code related to agricultural products. in historic federal agricultural marketing records