Quote Originally Posted by Ronin13 View Post
Those two holes can be used like a compass (not the directional kind) to make a circle... and the other kind of compass too? The arrow with the N I can only assume to mean that it's magnetized and will point north if in water on some kind of floating apparatus, maybe?
To act as a compass, I believe the middle small hole is for applying a string which should allow the North direction to be seen.