for GER 2-4-2T M15, G69/LNER F4-6 at 10 mm/ft
The later locomotives built between 1903-1909 with cast steel wheels
Complete sets consist of 2 x T9 front, 2 x T10 rear driving wheels and 4 x T14 carrying wheels.
Sources: Lyn D. Brooks, 'Updating Buckle' in Journ. GER Soc., 129:12-19 (Jan 2007).
Suitable for Gauge One Fine or Standard.