The Sydney G-class Trams were a class of single ended cars were designed to operate either permanently coupled back to back in pairs or singly hauling a trailer on lines with reversing arrangements at the terminuses.

[1] The G Class Trams were imported from the United States for the electrification of George Street.

They were originally allocated to Ultimo Tram Depot, later moving to Newtown and Tempe.

Two (124 and 125) were fitted with dual controls to operate tourist services in 1905.

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