Hi Brian!

I have no idea.
I just saw those yesterday pulled them out of some old transistor Radios.
And i thought they were cool and i thought it be nice to have a 100 of these as display somewhere. The Golden T must be from the 60's.

I found a battery collectors club and i emailed them. No reply yet.

My Girlfriend things i am totally nuts now.

She says i don't need anymore hobbies.

Rene