What is this and where does it go?

I am having trouble finding a place for this little fellow. It belongs on my 1970 vert. I believe it goes under the dash as support but was misfiled after painting and I am clueless. It has a number stamped 12293 A. any help! Thanks Sal

bracket

http://www.classiccougarcommunity.com/forum/gallery/image.php?album_id=51&image_id=305

I have no idea.

Sal,

You are correct, one end goes on one of the power brake booster studs (with a second nut), and the other end attaches to the lower dash.

Thank you. Sal