Plans and/or Photos

I googled 'tugboat wheelhouse' using google images.    This is among the results.    This may be post-70,  but will give you and idea whats out there

Also, see the HNSA's listing of General Arrangement Plans

http://www.hnsa.org/doc/plans/index.htm

Included are plans for the USS Nokomis - a Woban-class tug

Another suggestion-If you are located in the NE US, the Maine Maritime Museum in Bath, Maine has an almost full-size mockup of a tug wheelhouse. A visit to the museum is worthwhile for a lot of reasons.

The Edna G, on display in Two Harbors, MN, is a bit older than that, but I believe was updated several times with more modern stuff in the wheelhouse, so these shots may help.

Here are some shots inside the pilothouse of the APALACHEE, in USCG service 1943-1986.  Other pictures available at the CG Tug Association website,

Former USCGC SNOHOMISH.