4′ 1½″ (= 1,250 mm) diam., 10 oval spokes, rectangular inne rim.
Hub: 11½″ (290 mm) face dia., level with the tyre.

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

Casting: 39.1 mm tread dia., 33.8 i/d, hub level with the tyre.

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

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