I don't know how "rare" this is, but I know they still had these on the M60 Patton tanks....if you were in one that kept a good hand receipt and shortage annex.  I wish I had the budget to get it, but I thought you guys might enjoy taking a look or a hack at winning it:

http://www.ebay.com/itm/OLD-USED-VINTAGE-TOOLS-WRENCH-LARGE-RATCHET-LOWELL-CO-MILITARY-/280822708734?pt=LH_DefaultDomain_0&hash=item41625679fe

IF ONE OF YOU GUYS WIN IT...let us know.

S.A.B.

Now if I got that ratchet, would be on the look-out for a Little Joe wrench too.  See who knows what that is for?    Now you got me searching for square shanks, and Powell sockets.