There is only one meter on the outside. From what I can tell, the meter feeds inside the “first” house into one of those enclosed metal raceways (for lack of a better description and actaul name of system component) then from the raceway it branches off to the other two identical panels.
I guess I should have pulled off the raceway cover, but I really didn’t want to go there.
I did not look for the Aluminum rating, but will remember for next time because the feeders are Aluminum.
The meter does not have a breaker.
I apologize for not having the correct photo of the layout on the inside showing the raceway, I thought I got it when I took the photo.
Thanks for the questions.