From the blog "The Farthing layouts"

These past weeks I have had some pleasant early morning modelling sessions, building a GWR covered float for my early 1900s setting.      The model was built using  two drawings in Great Western Horse Power by Janet Russel (figs 180 and 182) and a photo in Great Western Way p.163 (original edition). I was a bit slow to discover that there are variations between the drawings and the photo. The prototype is not in the GWR diagram book for horse-drawn carriages, but is arguably a var