Double-decker bus
The first commercial horse-drawn double-decker omnibuses were introduced in England in 1847 by Adams & Co. of Fairfield, Bow, then improved upon by John Greenwood, who introduced a new double-decker in 1852.
Graham's Bus Service
Double-decker Guy Arabs were the standard intake between 1944 and 1963 but finally disappeared in 1977. Their place was taken by Daimler Fleetlines, which were replaced by new or second-hand Leyland Atlanteans and the ex London Transport Daimler Fleetlines. A Ford R1114 demonstrator, bought in 1972, was the first single-decker for many years and was followed by an assortment of single-deckers, mostly Leyland Leopards, to work on the Bridge of Weir and Linwood Clipper services. One of the more unusual vehicles operated was a former Alexander bodied M-Type Volvo which had started life with Western SMT on its Glasgow to London service.