A VF used example of the 20c green & dark blue Justice from the 1864 First Law Issue Overprinted CF. Lovely centering, full perfs and a nice manuscript cancel. Simply the best available quality. These stamps are difficult to find in this conditon for several reasons. Firstly, the paper tends to be thin and fragile, so missing and short perfs are common, as are creases. Also they were usually not very well centered.
Van Dam values this at $15. The stamp offered here grades 80 as follows:
