The last contest of 2007

Yes, it's the this is not a postcard contest.
This contest is open to everyone except for Candy Minx and STAGG, because they were with us in Breaux Bridge Louisiana when Tuffy P found this item.
The mission: tell me what this is, when it might have been used, how one might use it, and precisely what is on the other side of this item.
The prize: I will make an artwork based somehow or another on this and send it to the winner.
The deadline: New Years Eve, midnight.
All answers are to be left as comments on this post. If there are multiple acceptable answers, the first to answer correctly wins. If no answer is 100% correct, the closest answer wins. I'm the judge, and the judge's decisions are final. Got it?
