(!!!) (Best Single 1958) JTL-5687 Tungsol black plates "U" getter like new 1958 (37.5/41.5ma)
(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)
(!!!) (Good Value Single) JAN-5687WA Raytheon bronze plates "O" getter like new 1960 era (33.5/33ma)
(!!) (#1 5687 Tungsol used 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)
(!!) (GOOD VALUE SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/good 1959 (29/36ma)
(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)
(!!) JTL-5687WA Tungsol bronze plates "O" getter used/good 1958 (30/30.5ma)
