HotLine1:

If those were the older A base meters, yeah, I could see that as a possibility. But, all four meters appear to be modern Form 2S and I don't think barrel locks were used for that many years....and:

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Only left one of the phases hook up outside...

...so I think this is and was a 120/240v three wire service. [Linked Image]

Now the service to my apt building, well......let's just call it the "Little Service Of Horrors!" [Linked Image] (Pics and a new thread coming soon to a forum near you.)

Stupid should be painful.