I recently purchased a Lyman M5 scale on Ebay. The scale is in very good/excellent condition. I decided to clean the scale. In doing so, mostly for curiosity sake, I unscrewed the magnet keeper that is mounted to the base. When I did that the two magnets dropped out along with one metal tab. The tab is attracted to the magnets. Now I have no idea where this tab goes in relation to the magnets. Does anyone know? Attached is a picture. Thanks!