Featured Older Forged Pole-End Tool, Unmarked; What Is Its Purpose?

This is 9 3/4" long; the triangular blade is ~2 5/8" wide, ~2 3/4" deep, ~5/16" thick at its joint with the shaft, which is ~3/4"square at that point. At the hot-punched rectangular hole (~1/4" X ~1/8") the shaft tapers to !5/16" square. Weight is 20 oz.
I found it somewhere along the Northern California coast, one side or the other vicinity Eureka, in the '90s; that's redwood logging country, an this may have been used in a mill or the woods in that industry. What do you think? Thanks for lookin'!

 

It might be a type of "stake" or "hardy", used in shaping sheet metal. The long arm would fit into the square "hardy hole" on an anvil.

 

I was thinking it was used as some sort of anchor, but not in water.

 

@the blacksmith

 

@wlwhittier Amigo-You've got some great 'brain teasers' in your trove !

 

I suppose...my affinity for iron means much of it is Heavy!
Massive nuisance, what it is Bosko...