is this one

[jesster64]

Is this a poison?
https://i163.photobucket.com/albums/t305/jesster64/bottles/newdigs005.jpg?t=1271781261

 

[Poison_Us]

I don't think so, but I'm not entirely sure. Don't think I have seen a bottle like this before. Nothing in any of my stuff about it, which is not a for sure NO, but decreases the probability. May be the makers way of a non-slip surface for a secure grip...