What is it?

[randyfishmoore]

It's cast iron.  Approx. 5 " long, 1 & 3/8" wide, 1/2" thick and weighs 5.4 oz.  Found in S.C.

[Papaw]

That looks like a tool used for detaching links on farm machinery chain.

[mikeswrenches]

How about an ice chipper?

Mike

[amertrac]

how about a 4 hole belt buckle bob w.

[HeelSpur]

Nah, thats a pic the brothers used in those afro's.

[Billman49]

Looks like an ice chipper,  but the points appear a bit thick - see if you can find one at http://icetoolcollections.com/4icechippers.htm

[Bill Houghton]

Ultimate camping fork.  No campfire eggs too tough for THIS fork.

[randyfishmoore]

Thanks for the info so far.  It's not an ice chipper.  Was once told it was a rope tying tool, which it would work as that but the rope tying pros don't think it was made for that.

[lauver]

Extra heavy duty fork...  for people who like to eat with authority. 

It also looks like the handle end could be used for a bottle cap remover.  Beer anyone?

[rusty]

Beer and spagetti?

[geneg]

I would say that it is to clean the fins on something, looks agricultural. Possibly a seed cleaner, food grinder, or?
Second thought is to break up the crust in buffing pads or wheels.