Robert,

Here are some past threads with pictures which may be what you are looking for. Also, there have been several discussions on the military box pleat. Way2Fractious has done a recent and thorough study of the design and construction and may be of help if you are planning on sewing your own.

http://www.xmarksthescot.com/forum/m...x.html?t=33534

http://www.xmarksthescot.com/forum/w...x.html?t=34853

http://www.xmarksthescot.com/forum/m...x.html?t=27980