sketch showing construction GO.1.1345 Owen, George 1945-09-03 ViewLines plan GO.1.1346 Owen, George Viewlines and offsets GO.1.1347 Owen, George 1945-09-07 Viewconstruction GO.1.1348 Owen, George 1945-09-10 Viewestimation of weight GO.1.1349 Owen, George 1945-10-14 ViewConstruction plan GO.1.1350 Owen, George View