arrival
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departure
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The weapon of Amsterdam consists of three Andreascrosses, vertically aligned.
The same can be found back at the Amsterdam flag, but then lying.
The significance of the crosses is unknown, but historians assume that it stands for the three scourges which have affected Amsterdam, the water, fire and the plague.
It is also the weapon of the family Persijn (Jan Persijn is cited as founder of "ground" the current Dam) invoked as inspiration for the three Andreascrosses.
After the Second World War, as a tribute to the resistance of Amsterdam, the motto 'Heldhaftig, Determined, Most Merciful " was added to the weapon, with royal permission of the then Queen Wilhelmina in 1946.