(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.8/12.4ma and 10.8/11.5ma)
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.0/9.2ma and 9.2/10ma) 1-3% matched