(!!!!) (Best Single) 807=ATS25 GEC England black oval plate ceramic base NOS 1940's inspected in 1953 (84ma) (1st version of ATS25)
(!!!!) (Recommended Pair) USN-CRC-807 RCA black plates NOS 1940's (59ma and 61ma)
(!!!!) 807=ATS25 GEC England black oval plate ceramic base NOS 1940's inspected in 1953 (67ma) (1st version of ATS25)
(!!!) (Best Value Pair) 807 RCA black plate NOS and used 1970-1975 (67.5ma and 65.2ma)
(!!!) (Good Value Single) 807=ATS25 GEC England ceramic base NOS 1940's (70.2ma)
(!!!) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (64.5ma)
(!) 807 GE Italy gray plate NOS 1967 same build as UK made (80ma)
(!) 807 Russian made NOS rebranded GE 1984 (69ma)