It does kind of look like a breaker panel, but I am guessing it is part of an early computer. The N1, N2 and M look very familiar, and I recall seeing buttons like those on the old NCR accounting machines. the 4 individual "I" are probably ones. Old computers used 4 bit words, and that would make sense to me. I am digging a bit on this as the old computer guys I have worked with over the years have all retired.