East Machias, Maine
(June 30, 1826 to March 25, 1840)
and was renamed Mechisses
(March 15, 1842 to present) The 1842 to present East Machias office was formerly known as Mechisses. 
East Machias, Maine (open June 30, 1826 to March 25, 1840), October 16, 1835, rated 12½¢ due for distance of 80 to 150 miles to Bangor, Maine.
East Machias, Maine (open March 15, 1842 to present), March 10, 1848, rated 10¢ due for distance over 300 miles to New Bedford, Massachusetts.
East Machias, Maine (open March 15, 1842 to present), January 26, no year date but circa 1858-1861, 3¢ dull red 1857 pays the 3¢ rate for distances under 3,000 miles to Narraguagus, Me. Forwarded to Columbia, Maine, with no forwarding postage marked.
East Machias, Maine (open March 15, 1842 to present), May 2, 1862, two 3¢ rose 1861s pay double the
3¢ rate for distances under 3,000 miles to Boston, Massachusetts.
East Machias, Maine (open March 15, 1842 to present), September 9, 1863, 3¢ postal stationery entire pays the domestic rate to Whiting, Maine.
East Machias, Maine (open March 15, 1842 to present), December 7, no year date, but circa 1861-67, 3¢ rose 1861 pays the 3¢ rate for distances under 3,000 miles to a ship captain in Pensacola, Florida.