The best information we've found is that this gaming token was struck in brass around the time of the US Civil War. There are two varieties: NOTHING IS IMPOSSIBLE and THE WASHINGTON OF HUNGARY. The obverse ('heads' side) shows Lajos Kossuth, a Hungarian freedom fighter of the period, and the reverse side shows the pattern of a US gold $10 eagle coin. There are also some reverses with words about the Cause of Hungary (see secondary picture).
Although I cannot document it, I suspect modern reproductions of this token have been made in recent times. This page assumes you have a genuine Kossuth token struck during the Civil War era. Modern tokens, if they exist, would be worth much less.
TOKENS STRUCK DURING THE CIVIL WAR PERIOD
worn: $5 US dollars approximate catalog value
average circulated: $10
well preserved: $20
fully uncirculated: $100
Please refer to our Terminology page to properly interpret catalog values.