1883 January 2:
East Lebanon post office opened. (source: Maine Philatelic Society. 1995. The Post Offices of Maine: A Rarity Guide.)
1901 May 14:
The circular postmark is approximately 27 mm in diameter.
(click on image to enlarge)
1939 December 29 through 1942 June 26:
The circular postmark is 31–33 mm in diameter. The outside vertical height of the four horizontal bars to the right of the circle is 19–20 mm.
(click on an image to enlarge)
today:
East Lebanon post office is still in operation.
Lebanon (2)
1997 July 1:
Lebanon (2) post office opened. (source: Maine Philatelic Society. 1995. The Post Offices of Maine: A Rarity Guide.)
2021:
Lebanon (2) post office. 5 Little River Road; Lebanon, Maine 04027. Lat./Long.: N 43°24′42″ x W 70°52′05″
(click on image to enlarge)
today:
Lebanon (2) post office is still in operation.
West Lebanon
1836 February 4:
West Lebanon post office opened. (source: Maine Philatelic Society. 1995. The Post Offices of Maine: A Rarity Guide.)
year?:
West Lebanon post office.
(click on image to enlarge)
1959 October 31:
West Lebanon post office closed. (source: Maine Philatelic Society. 1995. The Post Offices of Maine: A Rarity Guide.)