That's a huge help, Russ. I hadn't realized there should be three metallic shades on the plane. Your work is beautiful, too!
Glad to help Phil. The 1917 Nieuport Photo above (I think it was taken at Langley VA) is a great clear period photo, even in black and white. If you enlarge it, you can see a myriad of details that escape the casual look, itís far better than other period photos.. Itís interesting to note that to service the engine, the top panel of the cowling was unbolted (note the flanges at the top of the cowling), and the cowling was tilted down and lowered to clear prop. Studying that particular photo will yield a lot of information about the Nieuport 17.