Derringer--that is indeed a game arcade token, but it has nothing to do with the historical trade stimulator link above. It is from the early 1980s to the present. In addition to the "no cash value", the ® symbol on the obverse is the giveaway to the timeframe when it was used. You might check with Forrest Stevens at his site Forrest's Token Page as he is interested in arcade tokens. Also consider posting it on tokencatalog.com
John in the Great 208