"Overchurch" was the first of the fleet to be of all-welded construction and she is currently the last Mersey Ferryboat to have been built. The "Overchurch" was popular with its Captains and Mates as its navigation bridge spanned the whole ship, rather than having a wheelhouse and side cabs such as "Mountwood" and "Woodchurch" used. A model of the ship by builders Cammell Laird is on display in the Williamson Gallery in Birkenhead. The wheelhouse was spacious with a single binnacle and brass wheel. Most of the ship's control instruments were fitted into specially-built stand alone units, including the telegraph heads. Unlike "Mountwood" and "Woodchurch", there was no central set of telegraphs next to the helm, so the crew were required to move to either of the bridge wings to control the engines. Her bridge was modern, unlike the compact and relatively cluttered bridges on the "Overchurch's" two near sisters, where most of the instruments were attached to the bulkheads. It was a handsome vessel, with clean and smooth lines and a stout funnel. Her original livery was Birkenhead's orange and black, with a flame red band above the rubbing strake.