Super Sentinel Rigid Six Wheeler.
same photo that Alamy would like to charge money for. Assholes.
and the 1927 Sunbeam
Double-geared Super-Sentinel wagon in November 1927 and known as the DG. These were originally all supplied on solid rubber tyres.
The six-wheeled DG6 proved most popular from the start outselling the DG4 two to one although the cheaper Super-Sentinel continued to be supplied for another three years.
Following the Salter Report in 1933, the government introduced new speed limits and a licensing system for commercial heavy goods vehicles and their operators. In 1934, tax on fuel oil was reduced while road tax on steam waggons rose to £100 a year. The costs and conditions attached to the new licences and vehicle duty were contentious as they were based on axle weight and could be very expensive. The new charges drove the heavier steam traction vehicles off the road in favour of the lighter internal combustion lorries.