Harrington, Maine
(February 21, 1821 to August 23, 1845)
(February 18, 1850 to present)
Harrington, Maine (open February 21, 1821 to August 23, 1845), September 14, 1841 manuscript townmark, rated 6¢ due for distance less than 30 miles to Machias, Maine.
Harrington, Maine (open February 18, 1850 to present), April 4, 1854, manuscript townmark, paid 3¢ for distance less than 3,000 miles to Waterville, Maine.
Harrington, Maine, (open February 18, 1850 to present), June 19, no year date but circa 1869, 3¢ ultramarine 1869 pays the domestic letter rate to Hudson, New York.