I believe it's Swiss (maybe 2 Quarts) from the Canton of Geneva (notice the obverse "Respublic Geneven") but I don't know how much it's worth. Kewl coin! :thumb: Ribbit Ps: There's a reference of "DeMole.131" but I don't know what that means? http://numismatics.org/collection/accnum/list?linksrc=db&kw=+ihs&imageavailable=false Switzerland,Geneva, /BI,2 quarts obverse type: arms obverse legend: RESPUBLIC GENEVEN reverse type: IHS within rays reverse legend: POST TENEBRAS LVX (date) references: DeMole.131 region: Switzerland locality: Geneva date on object: 1788 denomination: 2 quarts material: BI axis: 5 references: DeMole.131 obverse type: arms obverse legend: RESPUBLIC GENEVEN reverse type: IHS within rays reverse legend: POST TENEBRAS LVX (date) Pps: Does anyone know if the "BI" for material, stands for billion (copper/silver alloy)? Ppps: You can also find similar coins (not this date though) at: http://www.coinarchives.com/w/results.php?results=100&search=dt The closest date I found was 1771 but it isn't the exact same coin (slight differences so probably a different denomination): http://www.coinarchives.com/w/lotviewer.php?LotID=447576&AucID=332&Lot=208