I am still puzzled, the shirt/jacket at the start of this thread (and below) does not button up to the top. It does not close the collar,the last button you see in the picture is the top button and no more button holes.
My WA HBT shirt does close at the collar.
The KD aertex Shirt/jacket that I have does close at the collar.
Just added my Grandfather in laws shirt/Jacket. He served in Palestine after the war.This one buttons to the top and has a small aertex pocket inside.