1. The pound of 500 grammes decimally subdivided, to be used as the basis of the coinage.
2. The competing systems to be assimilated to this basis by the following regulation:—
The thaler (or Prussian) standard of 30 thalers to the pound of silver to take the place of the 14-thaler standard, and to prevail in Prussia, Saxony, Hanover, Hesse, and a string of minor states.
The Austrian standard to be on the basis of 45 guldens out of a pound of fine silver, and to prevail in the Empire of Austria and the principality of Lichtenstein.
The South German standard to be on the basis of 52 1⁄2-gulden to the pound of silver (instead of the 24 1⁄2-florin standard formerly used), and to prevail in Bavaria, Würtemburg, Baden, Hesse, Frankfurt, and a few other places of South Germany.
The equivalence of the systems was to be—
One-thaler convention piece ( 1⁄30 pound) = 1 1⁄2 florins in Austrian currency = 1 3⁄4 florin in South German currency.
All the coins to be of unlimited validity in all the states, divisional coinage to be of a lighter standard than the coinage standard of the country, but lighter only within limits fixed. The tender of these latter to be limited to 20-thaler or 40-gulden.
THE VIENNA CONFERENCE, 1857