Technical plan and general profile of the Forth Bridge in Scotland showing cantilever spans and total length dimensions 插畫檔

This historic nineteenth-century woodcut engraving, titled "Le pont jeté sur le golfe du Forth, en Écosse — Plan et profil général," provides a comprehensive architectural and engineering overview of the iconic Forth Bridge. The illustration features a side elevation profile detailing the three massive steel cantilever towers and their connecting spans, with precise numerical measurements in meters indicating the 521m main spans and a total length of 2462 meters. Below the profile, a top-down plan view illustrates the bridge's tapering structure and rail track alignment across the Firth of Forth. To provide scale, a tiny silhouette of the SS Great Eastern is shown passing beneath the central span, highlighting the bridge's immense height and clearance for maritime traffic. This technical drawing documents the structural genius of engineers Sir John Fowler and Sir Benjamin Baker, capturing the monumental scale of one of the world's first major steel cantilever bridges at the time of its completion in 1890.