X1 (1923)

Scale 1:48. Plan shows the superstructure, bridges, outer and inner hulls, as fitted, for the cruiser submarine X1 (1923). The plan bears the signature of P. Palmer [Manager of Constructive Department, Chatham Dockyard 1918-1925] A Chatham Dockyard Constructive Department stamp, dated 9 October 1926, is present on the left hand side of the drawing.