Help identify this wrench

[toolmiser]

I found two of these wrenches in a box of parts from a Stanley #71 router plane.  I doubt they are related.  The stamped steel wrench has the #63 stamped in it.  Just curious if anyone knows what the wrench came with?  I don't see any use for it on a router plane.  Thanks for your thoughts!

[attachment=50187]

[attachment=50189]

[attachment=50190]

[attachment=50191]

[attachment=50195]

[K. L. McReynolds]

Welding bottle wrench. Various size valves on oxygen, acetylene, or other welding gas bottles.