Indeed, enough of the backmark is visible to say the information from TheCannonballGuy in the thread below applies to this one too: http://www.treasurenet.com/forums/t...erfine-extra-rich-back-flower-front-date.html
So, from the back we know: 1838-1846 by the Wadhams & Webster Company of Wolcottville CT.
But I can't tell what's on the front, so I can't say for sure if whether it's civilian or military.