Guys, you have no idea of the "old school" methods of wiring. I have an American Electricians Handbook dated 1913! I also have a Hawkins Electrical guide that is dated 1927; and last but not least, I have a Practical Electrical wiring book that is dated 1947. You should see some of the methods that are explained in these books. All three books are in excelent condition. Signs with chasing lights had a drum and electric motor that turned the drum. The drum had "tits" like you would see on a music box and as the drum turned, the tits would make the limit switches turning on the lights in sequence. Wow, we have come a long way!