Chuck, i have great respect for your experience and contribution. I knew that you were mixing up the pics. Please, no apology needed. I just wanted to avoid confusion for others reading here. Having said that:

I'm still confused as to why the glass fuses in the pics are different. Hoping to learn more about the history of that design. Maybe i'll start a new thread so as not to veer off topic.

Also, very curious about the 2nd and 3rd pics. It has real nice lines. Looking fwd to learning more about that too.