51. Delaware. General scheme of peninsula consisting of State of Delaware and peninsula counties of Caroline, Cecil, Dorchester, Kent, Queen Annes, Somerset, Talbot, Wicomico, and Worcester in Maryland, and Accomac and Northampton in Virginia, Feb. 1925. Bookmark Corporate/Agency Authors: Railway Mail Service and Post Office Department Publisher: Railway Mail Service Date: 1925 SuDoc number: P 10.6:D 37/4