Cluster One symbol in Division Bell booklet?

Hi all........I'm new here. Just a quick question. I'm very curious of the small symbol in the inside cover of the DB booklet next to the Cluster One title. It's a black circle with some strange writing in it. I was thinking of possibly getting a tattoo of it but would love to know what it is.....any theories or explanations?

It's also in the DB tour program on a thin white sheet of paper in which you can see the DB faces logo behind it. Any information on this symbol at all would be much appreciated. Thanks.

Aaron

oldbadeyes@aol.com

http://folk.uio.no/ericsp/an_co.htm
where were you thinking of putting it ?
mine is on my chest, hurt like hell but looks good there