1. Rural delivery routes, Middlesex County, Conn. / Post Office Department. Creator: United States. Post Office Dept Published / Created: 1919 Call Number: 766gmd M58 1919 Container / Volume: BRBL_00475A Image Count: 1 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Rural delivery routes, Middlesex County, Conn. / Post Office Department.