5′ 9″ (=1750 mm) diam, 17 oval spokes, rectangular inner rim, apparent tread 80 mm (=3¼″).
Hub 420 mm (13.2″) face dia., 80 mm (3.15″) out from the tyre, pin in line at 320 mm.

Source: No 230 at the Nene Valley Railway in 2002.

Castings: 54.7 mm tread dia., 49.7 mm i/d, hub 2.5 mm below the tyre, pin at 10.0 mm.

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

Scan of a casting in a set for a Nord 4-6-0 3500 class