Any idea what this might be?

[Colt45ws]

My Dad found it in his backyard.

 

[Chris142]

something you would find on a fence post?

 

[HM12460]

looks like a "special purpose" wrench, maybe to operate a valve used by your utility company.

 

[IntegraVT]

Maybe it's a stencil for this -

 

[eljefino]

If it's metal, could be a trivet, meant to keep stuff simmering on old school wood cookstoves.

If it's insulating, looks like a utility wire seperator.

 

[saberz]

Look's like the Plasma Sword from Halo 2..

 

[Geonerd]

Some sort of wrench, meant to engage three round pins sticking out of 'something that turns.'

 

[97tbird]

Originally Posted By: IntegraVT
Maybe it's a stencil for this -

LOL

 

[_Wes_]

Perhaps you could search through all these pictures.

http://home.southwind.net/~donhaury/marshallauction-2001/auctionlist.html