I am a former Western Union employee and while there I got my hands on one of the self winding advertising clocks WU offered with its time service. Saw your articles on the web and wondering if you could point me in the direction of a web site or book(s) that I might be able to find the value of this clock. As information, I have already tried using most of the web search engines such as Google, MSN, Yahoo etc., without much success. Matter of fact that is how I found your articles. Any help or assistance you could provide would be very much apprecated. Jerry Edwards