1550 mm (5′ 1″) diam., 16 oval spokes, level inner rim. Apparent tread 6″.
Hub 16″ face dia., 20 mm; above the tyre. Pin between at 330 mm (= 13″).

Sources: Works drawing.

Casting: 48.4 mm tread dia., 38.9 mm i/d,
hub 12.7 mm dia, 0.6 mm out from the tyre. Pin between at 10.3 mm.

Casting prices and stock . Netherlands, loco sets, price list

Scan of a casting in a set for a Netherlands NS 6300 class 4-8-4T