Issued on the fiftieth anniversary of the Treaty of Rome, which established the European Economic Community in March 1957. Belgium was one of the six original signatories alongside France, West Germany, Italy, Luxembourg, and the Netherlands — making this a genuinely appropriate issue rather than an opportunistic commemorative.
The .999 fine standard, rather than the more common .900 used in earlier Belgian gold, reflects post-Maastricht harmonization pressures on national mint practices.
Issued on the fiftieth anniversary of the Treaty of Rome, which established the European Economic Community in March 1957. Belgium was one of the six original signatories alongside France, West Germany, Italy, Luxembourg, and the Netherlands — making this a genuinely appropriate issue rather than an opportunistic commemorative.
The .999 fine standard, rather than the more common .900 used in earlier Belgian gold, reflects post-Maastricht harmonization pressures on national mint practices.