Decimal scale model made in Germany, by Max Kohl - Chemnitz.  The ratio of the system is 10:1, hence the name "DECIMAL scale". The demonstration scale show how the force work on each of the connections. The load force is transferred to the unequal arm beam by two rods, one connected directly to the back of the platform, the other to a V-shaped lever on which the front of the platform rests. The three demonstration pans are added, to show how the scale transmission work ,between platform ,beam and weigh pan.

The inventor of this system was Friedrich Alois Quintenz, born 1774 in Gegenbach Germany. First Patent 9 Feb. 1822. He died short after his patent on the 17 April 1822. Jean-Babtiste Schwilgue made some good corrections on this system which helped to send this scale system on his famous way.