Does anyone know these tubes


Are these tubes on par with Seimens & haskel cca nos.
NOS VALVO CCA 6922/E88CC GOLD PINS MADE IN HOLLAND 1964.
Thanks
malbor
Just based on what I have read--I would say yes.
I agree with Avguygeorge. I have laid in many of these although I presently use none. They look to be identically constructed.