Driver bogie for the Victorian Railways 'Kitson Design' D Class 4-4-0 built 1887 with the standard rivete counter weights that was used at the time, earlier in the year they where fitted with Solid counter weights that was used on the E and EE Class, strangely enough 82 and 92 had the rivet weights.
Wheels are 5ft 1/2in dia, 15 spokes, 6ft 8in wheelbase, b.r.base0 is located on the rear axle at Z-Axis 0, side rods are on a 10in pivot and crank on a 13in pivot.