What is this spanner for???

[southern_tango]

Last week at a garage sale got some stuff ,when checked it at home this spanner got my attention ,is a Stahwille and one side is 12 mm.and the other is 14.
Any ideas of what is it for?

 

[BFBOB]

Just a guess, but the upper end in the first two pix looks like it might not be a factory bend-chrome loss. Take a close look, see if you see any signs of heating or cracking. The other end is clearly a medium-deep offset, though that off-axis **** might be due to overtorqueing. Take a look in the Stahwille online catalog or Alloy Artifacts, see if it was originally offset x straight.
Curious.

Just for laughs, I tried those, came up blank. Nothing on Alloy Artifacts, and on Stahwille's site all the "double ring spanners" were symmetrical, which yours clearly never was.

 

[CNGsaves]

That's not a spanner . . . . it's a Wench !!

. . . . . .
. . . . . . . . . AND . . . it's a crooked Wench at that !! . .

 

[southern_tango]

First,my bad it is 10 mm and 14 mm.,the bent is hard to say just a bit of chrome missed but it's pretty parallel and no marks of heat. The ten mil.has those little slits.
The 14 mm. Is def factory offset ...

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[Outlawmws]

Probably bent on purpose for a awkward access solution.

 

[neophyte]

It reminds me of some of the specialty wrenches manufactured for some of the German automobile manufacturers, but I'm not sure which one. Not my area of expertise.