(!!) 5R4GYA GE brown base NOS 1972 (52/40 and 54/40)
(!!) 5R4GYA GE Hewlett Packard brown base "D" getter halo NOS 1959 (51/40 and 52/40)
(!) (BEST VALUE PAIR) 5R4GA GE Amperex NOS 1976 - vertical scratches on bases (50-53/40 and 50-50/40)
(!) (BEST VALUE SINGLE) 5R4GYA GE like new 1958 a few scratches on base (51/40 and 54/40)
5R4GYA GE branded Westinghouse NOS 1960's (50/40 and 53/40)
5R4GYA GE brown base NOS 1961 (50/40 and 52/40)
5R4GYA GE NOS 1959 (48/40 and 50/40)
