Fitzroy Iron Works at Mittagong, as there was at the time no rail connection to Bulli. The Gasworks Wharves Australian Gas Light Company The Australian Gaslight Company (AGL)—established in 1837—operated two gasworks. The first of these was at Miller's Point and opened in 1841. It fronted Darling Harbour, where coal was unloaded. This gasworks closed in 1921. A larger plant was opened in 1886 on a site at Mortlake on the Parramatta River. At full production, the Mortlake gasworks consumed nearly 460,000 tons of coal in a year, all of it delivered to its wharf by "sixty-milers". The Mortlake works alone needed about three "sixty-milers" to keep it supplied. The original coal wharf at the Mortlake gasworks was a T-shaped structure located at the end of Breakfast Point. The unloading arrangements at Breakfast Point were that the coal was shovelled into large metal tubs by coal lumpers working inside the holds of the sixty-miler. The tubs were lifted out of the hold by cranes on the wharf—a mix of steam and electric—and transported off the wharf in rail wagons hauled by steam locomotives. Within the Mortlake gasworks site, there were 11 km of three-foot gauge railway lines, over which six steam locomotives operated. Unloading a 1000-ton "sixty-miler", in 1920, required a total of forty-nine workers per shift: five crane drivers, five tippers, five wharfmen, two locomotive drivers, two shunters, and thirty coal lumpers. From 1937, coal unloading was carried out by grab cranes on an entirely new jetty on Kendall Bay and transported from the wharf by conveyor belt, ending the dangerous and arduous—but well-paid—occupation of "coal lumping" at Mortlake. North Shore and Manly The North Shore Gas Company—established in 1875—operated two gasworks on the Lower North Shore. The first of these was established at Neutral Bay in 1876. The second and larger works was at Waverton and was opened in 1917. In 1937, the aging plant at Neutral Bay was closed. Both these plants had wharves for unloading coal. The Waverton plant was dominated by a massive enclosed coal store. In 1943, the gas mains of the Australian Gaslight Company and the North Shore Gas Company were interconnected to allow either company to supply the other company's customers, in case of wartime damage to one gasworks. There was a gasworks at Little Manly Point. The operator of this gasworks, Manly Gas Company Limited, was taken over by the North