I found this in a box of stuff at a garage sale.
It is solid cast brass.
The "knife" blade (or wedge) hinges on the base.
There are 4 small holes in the base presumably for mounting to a surface.
The link below shows 2 pictures.
Any info as to what this was used for would be much appreciated.
http://photobucket.com/albums/v733/gdmcl/Thanks, George
