4′ 0″ (1220 mm) diam., 12 oval spokes; rectangular inner rim, apparent tread 2¾″, tyre width 145 mm.
Hub 13″ face dia, 1″ out from the tyre.

Sources: works drawing for left hand drive Nos 695-766, photographs.

Casting: 38.1 tread dia., 33.5 i/d, hub 0.8 mm out from the tyre.
Tyre width for scale modellers: 145 mm = 4.53 mm at 1:32 scale.

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

Scan of a casting in a set for a Netherlands SS700/NS3700 class 4-6-0