Back in the early 80's I bought my first tank, a Luxfer Alum 80. It came with a J Valve marked "Sears". Does anyone know who actually made this valve? I don't dive it anymore, but it sits with the tank (lots of old cool stickers on it) in the corner of my office. I don't have the heart to part with it but I'm thinking of making a coffee table out of it eventually.