Pawlet (Rutland County) established April 5, 1805 
earliest seen date: June 26, 1870
latest seen date: November 5, 1881
Slawson (1969) most common of all Vermont county postmarks
Dates Reported to me:
1879: June 26 (Billig, Vol. X, page 165)
1880: Feb. 19 (dealer's stock)
1881: July 9, Nov. 2 (personal collection), Nov. 5 (ebay auction)