Not knowing where to post this I felt better starting a new thread. The is a cover addressed to Gorham, Maine. Or at least I think it's a cover, might be some sort of wrapper. What would have a 4c rate in 1857?
On cover, tied by a hand stamp cancel (that I cannot identify) are a Scott #25, I'm thinking from plate 4... no inner lines. And a Scott #9, 4L1L I believe, single recut on the bottom, T relief, Type IV.

Gorham Maine cover or wrapper

Back, doesn't look like a cover

4L1l Scott #9, single bottom recut, T relief, Type IV

Scott #25 plate 4 possibly