How widely accepted is the number 13 / capital letter B as an indicator of treasure?

[georgieb]

Hello! Newbie here. I happened upon a symbol carved in stone that looks like a capital B, but with slight gaps between the vertical line and the arcs of the B, making it look also like the number 13.
I have read in previous posts that this indicates treasure, but I'm wondering how widely accepted that is in the treasure hunting community?
The B/13 is framed by a box, with an arrow pointing down.

 

[mdog]

Hello! Newbie here. I happened upon a symbol carved in stone that looks like a capital B, but with slight gaps between the vertical line and the arcs of the B, making it look also like the number 13.
I have read in previous posts that this indicates treasure, but I'm wondering how widely accepted that is in the treasure hunting community?
The B/13 is framed by a box, with an arrow pointing down.

I've seen a B like that, inside a box with three other letters, G, M, H. There is also a pointer on top of the box, pointing up. If your carving is like the one I've seen, it's on top of a cliff or bluff and you're supposed to go down to the bottom of the bluff and look for another symbol. The pointer I followed directed me to the top of the bluff and 100 yards back from the edge, I found a boulder shaped like a heart. Public land though, can't dig.

 

[KYgotGOLD]

Picture?

 

[mdog]

Hello! Newbie here. I happened upon a symbol carved in stone that looks like a capital B, but with slight gaps between the vertical line and the arcs of the B, making it look also like the number 13.
I have read in previous posts that this indicates treasure, but I'm wondering how widely accepted that is in the treasure hunting community?
The B/13 is framed by a box, with an arrow pointing down.

This one is in eastern Iowa. The measurements of the lines and letters are important. The measurements are used as confirmation to relate each carving or formation.