There is not much known about her just that she had a displacement of 750 tons, a draught of 1,8 metres or 6’ and that armament consisted of 1-100pdr Parrott irfle gun, 2-24pdr howitzers and a heavy 12-pdr gun.
The photo was made in the years 1864-1864 on the Western Rivers when she was tied up to the shore. Source http://www.history.navy.mil/photos/sh-usn/usnsh-v/vindcatr.htm Photo #: NH 49973.
Sources
http://en.wikipedia.org/wiki/USS_Vindicator_(1863)
http://www.history.navy.mil/photos/sh-usn/usnsh-v/vindcatr.htm
http://www.historycentral.com/navy/MISC%202/vindicator.html
http://www.search.com/reference/USS_Vindicator
Note
1. Congressional serial set. 38th Congress 2nd session Senate, ex doc no. 19, page 23 published a list of the ships build, repaired and altered on the western rivers and mentioned a ram Vindicator built at New Albany with as contract builders Hill&Payne, of the 3rd class, armed with 4 guns, a displacement of 750 tons and a draught of 5,5 (light)-6,5 (heavy).