Two models of the convoy ships Leopoldus Primus and Wappen von Hamburg in the Chamber of Commerce, Hamburg, Germany. Both are modern replicas of two models of the 17th century.
When the threat to trade from pirates on the Elbe increased, Hamburg was initially reluctant to react. The Commerz-Deputation (the old name for the Chamber of Commerce) then took matters into its own hands. In 1665, it levied "convoy money" from every ship that called at the port of Hamburg and used it to build "convoy ships". These warships subsequently escorted all merchant ships on the Elbe that wanted to sail to the safe port of Hamburg.
The city recognised the effectiveness of this measure and from 1710 gave the Deputation both a seat and a vote in the Bürgerschaft (the city's government). The deputation was thus able to considerably expand its economic influence in the city. Only 25 years later, the association even enforced lower trade tariffs and a free port. Goods could be stored in a free port and were not charged customs duties until they were sold. A very great advantage for all sea merchants.