Anyone else ever found one of these?

[swater]

It is about the size of a half dollar. Made of brass I think. Along the top edge it says calender of 1855. On one side it has months jan. through june, other side july through dec.
On both sides it has all the days of the week along with all the numbers. 1 through 31. this is all lined up in a sort of a T shape. There is some small printing along the edge but cant make it out yet
Im afraid to try to much cleaning at this point , dont want to scratch it if it is worth $$. Anyone know of these? Any value? Thanks.

 

[ken-ks]

I don't know anything about it but it sounds really neat! Let's see a pic of it!

 

[swater]

Ken-ks,
Even if I was computer savy enough to post a pictue, I think it would be to dark at this point to show any detail. As you can imagine all that info packed on a coin sized token would be very small.
Sweet barber by the way.