Cooper, Maine
(1) (December 7, 1827 to July 31, 1904)
(October 11, 1907 to November 30, 1944)
(2) (June 5, 1907 to December 27, 1907)
The 1907 Cooper office was formerly known as Grove, and was renamed Grove.
No postal markings are recorded from the 1907 Cooper office

Cooper, Maine (open December 7, 1827 to July 31, 1904), August 15, 1853, manuscript postmark, paid 3¢ for distance less than 3,000 miles to Foxborough, Massachusetts.

Cooper, Maine (open October 11, 1907 to November 30, 1944), July 5, 1910, post card to North Brookville, Maine.