I have no clue!Ain’t that a old style 30 series?
They advertise and show a picture of "old style comet torque converter buttons"
Some better pictures of the whole clutch would help.
Yes, those are them.Are these them? https://www.ombwarehouse.com/comet-insert-buttons.html
Even if the issue is solved or resolved to satisfaction, we could still use those photos to flesh out the topic and assist our fellow and future DIYGK'ers.