100 Amps electrical panel question

[kwired]

most panels that utilize "miniature breakers" have vertical column bus structure and "fingers" that extend off those bus to the area where breakers plug onto them.

 

[Dennis Alwon]

We just replaced an old push-a-matic panel but it was an unusual one. The panel shown above have one row of breakers. This panel had two rows and each row had a 100 amp breaker controlling each buss.

 

[kwired]

We just replaced an old push-a-matic panel but it was an unusual one. The panel shown above have one row of breakers. This panel had two rows and each row had a 100 amp breaker controlling each buss.

I've seen several of those. That is their version of a 200 amp panel I think. They may have had 200 amp bus in some of the later panels, but had EQ style main breakers.

Apparently they did have three pole panels/breakers, though I have only seen pictures of them on the web.