Karl, I would be happy to offer assistance, in the form of advice based on my experience building and maintaining interactive exhibits. A little more information on the exhibit would be helpful. Will there be interactive components? The term "telecommunications" seems to imply historic and modern technologies and an excellent forum for hands-on exhibits that demonstrate some simple principles and linking them to modern technologies. If you respond to this post early next week, you'll probably get my e-mail response via laptop computer and cellular modem, as I'll be "on the road" in NC. Mark C. Vang Freya Ventures [log in to unmask] www.freyaventures.com