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Naaa. Just bored! There is some cool info in this thread on Geneva beginning on post #148.
http://straightrazorpalace.com/razors/89881-american-knife-co-plymouth-hollow-conn-4.html

AFAIK, Ontario was made by Geneva. As to the number in the pyramid, I think a date stamp. We have discussed it before, but no conclusion that I recall. Good hard steel! :D