ACW Siege Mortar

Many years back I acquired an Italeri Union Artillery set, which included a Mortar. I assembled and painted it and the crew at the time, but couldn't decide how to base the figures up so they were consigned to the "painted but no current use box". The Wargamers' Forum had a "shelf queen" challenge and I thought of these, but the challenge ended before I rediscovered the mortar. I have now found it and based up the crews so it can be used as either side.