Ishi fishing spear head attachment.

[GlisGlis]

very well done. Waiting for picture of it in use.
just a tough that came to my mind
have you checked for fishing restrictions as far as harpooning?

[wstanley]

Thanks Glis. I think the closest thing CA fish and wildlife (formerly game) allows is spear gun fishing... I imagine my harpoon is not considered a spear gun. My idea was to try my buddies private pond. If he lets me : )

[GlisGlis]

You should be allowed a special scientific permit. 
That's only half a joke. Your replica could really be of some historical interest. Maybe you could contact a university professor to partner in your tests 

... and yeah, i guess private ponds are a good solution too

[wstanley]

That's what I say!

That would be cool for sure. Really I would be willing to mail the forks, toggles, and cordage to someone in a state with relaxed harpooning laws - hahaha if that exists! All you gotta do is make the shaft! No kidding. I think the test would be best on a large river with salmon!

[YosemiteBen]

My cousins got special permission from F&G to spear fish at Oroville Dam sometime ago. So, it is not unheard of.... Also, DADT, Don't ask, Don't tell....