4′ 3″ diam., 12 oval spokes, rectangular inner rim.
Hub 16″ face dia., ½″ out from the tyre.

Sources: measurements taken direct from tenders of the Midland Compound and an 0-6-0 4F.

Note: some tenders later aquired one or more pairs of the LMS vee rim wheels, casting P38.

Casting: 40.5 mm tread dia., 34.3 mm i/d., hub 0.4 mm out from the tyre.

Casting prices and stock . MR loco sets, price list

Scan of a casting in sets for a MR 0-6-0 4F, MR Johnson 4-2-2 115 class