Here's a close matching pair of used, tested GE 6CA7 EL34 "fat bottle" tubes.  Double halo getters. slanted toward each other in the top like in the Sylvania fat bottle 6CA7 EL34 tubes.   One is relabeled RCA, but both have the characteristic GE etched dot pattern on the upper side of the tube (see second photo).  These GE tubes differ from the Sylvania by having a rectangular (not round) center hole in the three holes on the sides of the plates.

On my Hickok 539B tube tester where 3800 is minimum "good" (65%) tube value, they test at 5200, 5400 umhos.  The getter silvering is strong and silvery with no darkening.

I combine shipping.