These are so cool !!!

Thanks for taking the time to post these !!!

It is development work one my friend. if Tesla factory stopped existence, he saved many lamps. FORTUNATELY. He was not alone, also other people saved, what possible, incluiding foreign samples (test lamps, standards etc.) In last monts existence this factory I was VERY oftly visited there

Interesting to see how sputter blackened some are, but not others. I assume some were used on the test bench for longer.

Nice lamps