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Sea Lion was a battery-electric locomotive [1] with a 2-foot gauge, built by Wingrove & Rogers in 1921 as works no. 313 for the Groudle Glen Railway on the Isle of Man. Together with its sister, Polar Bear , it was intended that they would replace Sea Lion , and Polar Bear , two Bagnall steam locomotivess of the same names. However, the battery locomotives were not hugely successful, [1] with Sea Lion being scrapped in 1922 following an incident where it fell down the side of the Groudle Glen.
It has been proposed to build a replica Sea Lion at the Amberley Museum Railway, home of Polar Bear , using the frames of 1953-built Wingrove & Rogers loco no. 5031, which has been used at Amberley as a spares donor. The replica would be built initially as a static exhibit, with the potential for it to be made operational.