How common a sight was this back in the day, Coach?
It looks like whenever one of these plastic (glass reinforced nylon?) loops went pop, the whole racquet would have had to be disassembled to replace it. That has got to be one massive nightmare for the stringer (and an excellent reason not to allow these frames anywhere near one's shop)!
I wonder whoever strung this one up got paid for his ingenuity/laziness.
However, it's also abundantly clear now which two loops will pop next if the racquet is put to use again with even moderate vigor.
Edit: I don't know why it didn't occur to me before, but I am obviously looking at the aftermath of the popping of the two top loops, rather than the product of a creative string job. My guess is that no shop would accept it, and I can't blame them!