Unnamed 150ft cylindrical submersible petroleum barge (1913)
Scale 1:48. Plan shows the inboard profile, plan view and sections for a unnamed 150ft cylindrical submersible petroleum barge (1913). The title of the plan is "General Arrangement of Cylindrical Submersible Petroleum Barge Scheme B". The drawing notes in red ink to look for plan 397792 for a plan of the anchor.