Scale 1:192. Plan shows the outboard profile at sea with sails set of an unnamed proposed 260ft 3-masted steam despatch vessel circa 1865. This proposed vessel appears to be a potential replacement for the despatch vessel Enhantress (1862) The alternative clipper bow is marked in red ink over the bow. Details of the measurements and construction costs of the vessel are present on the drawing. The words "Comparison of proposed vessel with Enchantress (1862)" are present on the plan.