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Gil's given us a good source, a pic of a real ship. It agrees with the sideview draft he posts for the Polish archive, with the added gift of 3D rendering in full-scale. Did the moldmaker have this photo in front of him when he made the master, and was he paid to care?
It's useful to consider how much of the fashion in hull design for this size and mass was based on actual tank tests, and how much was from "thought experiment," which was still considered a viable scientific procedure at this time, at least as Naval architecture institutions were concerned.
Let that go, though: we have a shape to look at.
Look at how the water will "see this shape: when the rudder deflects, the flow continues past the end of the hull without cavitating, and water hitting the rudder at its angle will not hit a big flat front edge but a comparatively-sharp leading edge. (The thought that it encounters that relatively flat plate at a high angle of attack may not have occurred to the designer, but let that go!)
Nice digging, Gil.
'Duster
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