Most all of us know of the Kodachrome US shields in Florida (a few of us have one or two in our collections or photo albums....)
So, let's see what diversity of colored route markers we have in our files....
(from my collection....)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2FConnecticut%2520Signs%2Fct%2520us%25201a%2520red_zps0nygmq3l.jpg&hash=2b209a298b707fe0ed8d7c0bf74090b2d5df545e)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2FConnecticut%2520Signs%2Fct%2520us%25205%2520g%2520real_zpsuhh266r2.jpg&hash=83c39f264c9e0455330839a8075ff037b0b528fe)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2FConnecticut%2520Signs%2Fct%2520us%25206%2520yellow_zpsquxrnxya.jpg&hash=d8fa4f60e052dc694430e0d628ef4544870d2cb1)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2FConnecticut%2520Signs%2Fct%2520us%252044%2520bl%2520real_zpscb8wcq9z.jpg&hash=26475a003dd127c191c998737d34183ab3dcc4d6)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2FConnecticut%2520Signs%2Fct%2520us%252044%2520board_zps3rs3yo6i.jpg&hash=d7551137be1353aca0bab54eeba90b28f6b3a59e)
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi166.photobucket.com%2Falbums%2Fu102%2Fctsignguy%2Fflaus1e_zpsfad3f475.jpg&hash=83424414198d171a04290d5974d1343f2f2fed1a)
So let's see what we have!