what is the value of a 1822 Percuncia Totum Circumit Orbem coin

[xplrer]

what is the value of a Brazilian Percuncia Totum circumit Orbem dated 1822?
I found it in a old one room shoolhouse lot from the early 1900's

 

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[PBK]

Welcome to TreasureNet!

You'll need to post photos, as there are several different denominations of 1822 Brazilian coins bearing the same legend or inscription: PECUNIA.TOTUM CIRCUMIT.ORBEM. Also, the condition of the coin is important in determining the value, and photos are a must for that, too.