London: SDUK, 1842. unbound. Map. Steel engraving with original hand outline. Image measures 15.5" x 12.25" very good.
Circa 1842. Includes the Galapagos Islands outside of the border. The Society for the Diffusion of Useful Knowledge was formed in 1826 and published low cost maps with the goal of reaching a large market, while still maintaining high quality and precision.