4′ 0″ diam., plug type wheel, apparent tread 3½″.
Hub 10½″ face dia., 1.3″ out from the tyre, pin between at 12″.

Sources: published dimensions and photographs.

Casting: 53.9 mm tread dia., 46.1 mm i/d., hub 1.5 mm out from the tyre, pin at 13.5 mm.

Gauge 3 loco set prices . Casting prices and stock

Scan of a casting in a set for S & D Derwent.

Suitable for the Gauge 3 Society 2010 minimum tyre width of 6.8 mm, or the earlier standard of 8.0 mm.