Thanks for your replys,
I won the bid for a Ferguson wrench on ebay. Yes, I paid more than I should for it, but per the write up it is the correct wrench.
when i get the new to me wrench:
I will not carry it in the tractor fender tool box. In fact, I plan to take the power spread wheel tools out of the tractor tool box and place all of the Ferguson tools in a safe place in my garage. (so I can find them when needed).
my wife was doing the biding for me at the end, she hung with the big boys and got it.