Found one today (an earlier SM with clasp/"click" closure) that has a khaki green body, navy jewels, and grey section. Normal or frankenpen?

Thanks in advance

Navy jewels are pretty normal for a deluxe, I have a black and an olive green with navy jewels. The section I'm guessing started out the same color as the barrel but the barrel has greened and the section remained more or less it's original color. I have seen several later esterbrook solids that have "turned" The pastel blue goes to a washed out green-blue. The pastel gray goes green. The pastel tan goes to a green/ khaki color. I would say you have an original pen.