While the conversation is close on Challenger, I'll float this question.....Has anybody seen something like this 3/4" open drive ratchet stamped Model 1861 Challenger, but done so on a ground off flat spot on what for all the world appears to be a Thorsen made (or maybe P&C?) tool. Wondering aloud if someone either had a desperate need for ratchets to fill out sets and was suffering a broken tooling, or conversely someone else was sitting on a mountain of dead inventory and held a fire sale pennies on the dollar. I concocted a theory, without substantive basis, that the new acquisition of Thorsen in around 1940 might have had them doing some pretty creative things to raise needed cash, as Alloy Artifacts alludes to a desperate imperative at that time to upgrade from tooling dating to just after WWI. As always your input is valued and appreciated.