The presentation inscription translates roughly as follows:
To Senator Amandus Augustus Abendroth, civil servant of Ritzebüttel, as a thankful memento from the the inhabitants of the town, 1821.
Amandus Augustus Abendroth (1767-1842) studied law and practiced in Hamburg where he was elected Alderman in 1800. Abendroth became govenor of Ritzebüttel in 1809. In 1810, Ritzebüttel was affected by Napoleon's annexation of much of north Germany, and Abendroth became maire of the town under French rule.
After the defeat of Napoleon, Abendroth returned to Hamburg as head of police, and was elected mayor of Hamburg in 1831.