Looking at yours I would say painted. I have one of the brass ones. Interesting that the design and lettering is totally different. Now the question is which is older, my guess is the brass one. The brass one has a raised center part. My guess is that the deck was two pieces with a strip of wood covering the seam in the middle to cover it and to keep water out. Also required less work than getting a perfect match at the seam
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evinrude bow eye 002.JPG (773.46 KiB) Viewed 148 times
evinrude bow eye 001.JPG (795.07 KiB) Viewed 148 times
I agree. The cast iron one may not have been originally plated but just painted. Also your brass one is probably older although the other one seems more crude. I know a guy that I will see in a couple of weeks that might be able to tell me more. Thanks for your reply.