wrench patent?

[michigancraig]

http://www.google.com/patents/US331158?dq=331158&hl=en&sa=X&ei=xHN5UP7nA6LL0AGlhIGwAQ&ved=0CDMQ6AEwAQ

I got a wrench very simular to this one

http://i222.photobucket.com/albums/dd3/buswrench/york-2012/Y12-0013-23.jpg looks like #17 in this group,

any idea on value? rarity?
Craig

[Papaw]

The wrences pictured were in one of Bus Haury's auctions, he might know how rare and valuable that one is.
It is #557 in Schulz, with no note about rarity.

[Lostmind]

That's a nice collection of unusual wrences.
More photos!

[rusty]

Not super rare, or valuable, EG , you won't retire if you sell it, but worth more than a run of the mill monkey wrench.....

http://www.mjdtools.com/ToolItem.php?item=253752&list=1390