Probably B5 compound Road Loco 9658 of 1903.
Picture from the late 30's Arthur Hewetson on ground and Stan on the footplate of 10128 a Class "R" G.P. Compound of 1905
Taken at one of their Ronga valley sawmill sites. The mill sites were moved to near where the trees were available.
Logs hauled onboard by steam. See the engine at right.
The trailer is now at Brayshaw Park Museum in Blenheim, Marlborough province N.Z.
Page up dated 09:28 29/06/00.