[226]. Ten-wheel double-bogie under frame, the centre pair to have end play or broad flat tyres.
[227]. Twelve wheels and three bogies. The centre bogie must have end play, either as in [Nos. 222] or [226], or with transverse rollers between the bogie and frame.
Note that in [Nos. 221], [223], & [224] the centre pairs, if running on rails, must have either end play in the bearings or flat broad tyres.
[228]. Open passenger car, either with transverse or longitudinal seats.
[229]. Covered passenger car, with either longitudinal or transverse seats.
[230]. Passenger car, with outside and central longitudinal seats.
[231]. Passenger car, with upper and lower longitudinal seats.
[232]. Passenger car, as [No. 231], but with seats reversed.