Two of the W H J Alexander towage company's 'Sun' tugs assisting the Furness Withy line's ship 'Pacific Reliance' upstream. In the foreground is the Thames Sailing barge 'Florence Myall'. She was built in Rochester in 1884 and owned by Associated Portland Cement Manufacturers. In the distance can be seen one of the Woolwich ferries. Photographed for E. Arnot Robertson's book 'Thames Portrait' (1937).
