I see that your new blog post includes a photo of one of my favorite traffic signs — at the confluence of the Hudson and Mohawk. Attached is a closer-up view that I took on 7/13/02. It appears from the color of the sign in your photo that the sign has been replaced or refurbished in the 10 years since I took my photo from the northern shore of Peebles Island (where, by the way, the NYS Office of Parks, Recreation and Historic Preservation has a large facility in one of the old shirt factories that provides preservation and restoration services for items from NYS historic sites).
Feel free to post the attached photo (and the above comment) if you like.
Leo