I'm looking for that special 4x5" film holder that has fallen down into your crawl space and you've been waiting for the right occasion to go get it. Or perhaps the one that you loaded with sandpaper on accident? How 'bout the one that doesn't so much have a "dark" slide as a "swiss cheese" slide? But no seriously.... I'm looking for a cheap holder that I can modify to suit my screen-plate experiments. Must fit in a spring back and must have at least 1 darkslide. $10 shipped. Any takers?, errr.. givers?