Quote Originally Posted by poppachubby
You're right , there's no real way to know, but they certainly look 30 years old.

I don't mean I don't think they're old. In fact, they could be 40 years old, for all I know...I'm thinking maybe they were either transplants from or original parts for one of the intense blue early models like the Twenty-Two in this image I borrowed from classic-audio.com.