I was always curious as to how the green signs looked when the state highway shield was on them instead of the interstate Shield.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fwww.alpsroads.net%2Froads%2Fny%2Fny_25%2Fe58.jpg&hash=3b20dc99eab1bfff38ddf91e19780bf93f00c8fa)
taken 1975 by Michael Summa, from http://www.alpsroads.net/roads/ny/ny_25/e.html