
There is probably more than 100,000 to 1 chance it is
not the big
DDO for that year. Probably less than 100 examples known. millions of examples of Machine damage that year that is not hub doubling. If should be this strong:

The hub doubling is not just on the date:


If it doesn't look exactly like that, then it isn't the big one.
Edited by coop
01/30/2017 9:05 pm