Jodi Evans wrote: <<It's not just the stuff in jars and boxes that pose a threat - think about the artifacts with batteries, lubricants, coolants, gun powder, arsenic, and known carcinogens.>> Okay, so this brings up a question that's been on my mind for a couple of months now: Say you do have one, very small, container of gun powder in your collection, and in this case it's the powder and not the container that is of historic importance. How do you handle it? Is there a safe way to store it? Megan P. Bryant Registrar The Sixth Floor Museum at Dealey Plaza 411 Elm Street Suite 120 Dallas, Texas 75202 (214)747-6660 x6619 E-mail: [log in to unmask]