Good used shape

see all picturesTested on my Sencore TC-142. Both Reads are on the higher side of Good-smoke glass /Coke bottle style. Blackburn B7 date code 1957

One tube has an issue. The last picture shows the glowing filaments of that tube. Initially it would not fire up but if you tapped the glass it sparks in that same area and eventually fires up. So probably a loose contact inside.

Other tube is fine. No issue