Finding reliable information on the dress of the Sardinian artillery during the Crimean War has proved to be a challenge; however, a uniform in the French style with black facings, piped in yellow is fairly consistently recorded, as is the dark blue tunic, breeches and shako (trimmed in yellow). The horse artillery had a drooping black plume, again similar to the French line artillery, although the length and style varies between sources. Leather straps are reportedly yellow or buff in colour.
I have based my version of these colourful troops on the Minifigs S Range French artillery and they will provide valuable support to my growing Sardinian contingent.
More Sardinians to follow.