Lloyd
master brummie
Several of these Tilling-Stevens buses were converted to run on coal gas (town gas) during WW1, at Tamworth and Kidderminster. This fuel was not very good for running engines, and the vehicles were quite powerless. I don't know how long the bagful of gas would last, but they were refilled from stand pipes at the roadside connected to the normal gas supply pipes. The date is sometime between 1915 (when the bus was built) and the war's end in 1918.