My mistake, it was Sylvania Lifeline cool green lamp. not made by GE.
If anyone can date it, it would be interesting how old is!
You did good 👍 ! Being they are Sylvania opposed to G- E You shouldn’t have the worries of these loosing vacuum on You like the Flawed
G-E s do !
I can tell You that You will be very happy with these bulbs historically wise,
And You will definitely love the cool crisp green color when Lit up,
I’m guessing 1970s maybe!
As mentioned You did good - Congratulations!
Enjoy 👍!