Help me ID this unique arrow, please!

[Wary Buck]

My neighbor recently sold me an old Browning recurve and some Microflite arrows.  Then he came over today and said he'd found two other arrows as he was cleaning, and one was this "fish arrow" that he thought was pretty cool.  So do I.

The thing is made of two slender metal (spring steel) rods about the diameter of a bowstring with about that same diameter inbetween them.  They are welded (or whatever) together at the point, halfway up the shaft, and then at the nock end.  They lay side-by-side (flat) on the arrow shelf when the thing is nocked.

It flexes about the same as a lighter-spined arrow shaft would and is darn straight.  It's about 30" long.

My neighbor said he bought it in Columbus, NE which makes me wonder if it's an old Saunders product, but I've never seen anything like it.  I'm not much of an archery historian so maybe some of you can clue me in on what I have.

Here's the "nock" end.
   

Here is the pointy-end.  Ha.  This would be the view from the side if I were shooting.
   

This is the head end viewed from above.  The nock is situated as such that the two parallel rods lay side-by-side on the shelf.  The arrowhead is perpendicular.
   

And this last photo just adds a little perspective with my hand in the picture and the "shaft" and the broadhead turned so you can see both.
   

[raghorn]

It's called a Micro Spear by Trumark

[Wary Buck]

Thanks so much, Ron!  Here's what I then found by googling the data...some advertisements in F&S in 1970.

http://books.google.com/books?id=SKFM__EPww8C&pg=PA210&lpg=PA210&dq=Micro+Spear+Trumark&source=bl&ots=zX00JtMGkM&sig=2vs6Ws0t55WyxEFSBJhsqZNRoFE&hl=en&ei=UpVEToTZLabL0QHexqTUBw&sa= X&oi=book_result&ct=result&resnum=1&ved=0CBYQ6AEwAA#v=onepage&q=Micro%20Spear%20Trumark&f=false