I don't have the Action Tonight book, so scans may help.
I don't know a great deal about the interior of the bridges of Round-bridge Fletchers ... I have never been on any of them, since none have been made into museum ships unfortunately. Destroyer History's website, linked to the NICHOLAS Organization website, has a large number of images of onboard views of the NICHOLAS and some of her sister O'BANNON ... http://www.ussnicholas.org/images.html ... there may be some views there.
I have attached a view of the Navigation Bridge showing the Pilothouse layout for DD449-451, I got from the BIW Engineering Drawings DVD (available from destroyerhistory.org ... store ), hopefully this helps us communicate. The layout of the bridges changed throughout the war, but I think the basic pilothouse layout stayed the same at least when looking at the drawings for the remaining Round-bridge FLETCHERS built at BIW. There was a hatch on the centerline that went into the Chart House, but what is mounted, if anything, on the bulkhead between the pilot house and the chart house isn't spelled out and there wasn't a section cut with that view in the drawings. You guys building the 1/144 scale kit are challenging the knowledge base.

