Does anyone know where I can buy a couple cover boxes with dippers? These are the wooden boxes used in wet plate processes that hold either the silver or fixer baths, have a stand that hold it in place at a 45 degree angle or so, and have a plastic 'dipper' that allows one to slide the glass plate in and out of the box easily. I have been using trays, but I'd like to get these boxes. I've checked the obvious suspects - Photographer's Formulary, B&S, Freestyle, etc... - no avail. Thanks, Art.