Scale 1:32. Plan shows the plan view of the superstructure of the W class submarines W 1 (1914) and W 2 (1915). The title of the drawing is "HMS W 1 & W 2 Submersible, type- Schneider Labeuf-Topsides". A Sir W. G. Armstrong Whitworth stamp, dated 4 July 1913 is printed on the plan. The signature of C. L Ottley {Director of Sir W. G. Armstrong Whitworth flourishing 1913] is also printed on the drawing.