Canal under construction; possibly the Bude Canal; unknown artist; nineteenth century; Formerly attributed to Benjamin Williams Leader; 1831-1923; British; ca. 1840; Oil on canvas; Support (PTG): 12 1/16 x 16 inches (30.6 x 40.6 cm); architectural subject; beams (structural elements); boats; building; canal; cement; construction; dirt; river; ship; transportation; workers; Bude; Cornwall; England; Europe; Tamar; United Kingdom