[1]https://en.wikipedia.org/wiki/Seal_of_New_York_City
   Official description
   According to the New York City Administrative Code, the city seal must
   adhere to the following design:
   1. Arms: Upon a shield, saltire wise, the sails of a windmill. Between
   the sails, in chief a beaver, in base a beaver, and on each flank a
   flour barrel.
   2. Supporters: Dexter, a sailor, his right arm bent, and holding in his
   right hand a plummet; his left arm bent, his left hand resting on the
   top of the shield; above his right shoulder a cross-staff. Sinister, an
   Indian of Manhattan, his right arm bent, his right hand resting on top
   of the shield, his left hand holding the upper end of a bow, and lower
   end of which rests on the ground. Shield and supporters resting upon a
   horizontal laurel branch.
   3. Date: Beneath the horizontal laurel branch the date 1625 being the
   year of the establishment of New Amsterdam.
   4. Crest: Upon a hemisphere, an American eagle with wings displayed.
   5. Legend: Upon a ribbon encircling the lower half of the design the
   words "Sigillum Civitatis Novi Eboraci".
   6. The whole encircled by a laurel wreath.[1]
   Overview
   Edit
   The design of the current seal of New York City is adapted from the
   seal of the city first used in 1686. It features common elements from
   coats of arms used throughout heraldry, such as a shield, supporters,
   and a crest.[a]
   The two supporters represent friendship between Native Americans and
   colonists: in the dexter position, a sailor colonist holds a plummet—a
   navigational tool—in his right hand, while over his right shoulder is
   another navigational tool, a cross-staff; in the sinister position, a
   Lenape native to Manhattan rests his left hand on a bow.
   On the shield, the four windmill sails recall the city's Dutch history
   as New Amsterdam, and the beavers and flour barrels signify the city's
   earliest trade goods. Specifically, the flour barrels and windmill
   sails represent the tremendous wealth generated by New York City from
   the Bolting Act of 1674.[2] The act gave the city an exclusive monopoly
   to mill and export flour. The shield and supporters rest on a
   horizontal laurel branch.
   Located at the crest over the shield is an American eagle, added in
   1784 after the American Revolution and taken from the seal of New York
   State.[3] The eagle replaced an imperial crown, which had represented
   the authority of the British monarch during the colonial period. The
   eagle rests on a hemisphere.
   Beneath the shield is the date, 1625, when New Amsterdam was designated
   the capital of the province of New Netherland. The use of this date has
   been a source of debate among historians, as there is evidence that the
   first European settlers actually arrived in the region, and established
   what became New Amsterdam, in 1624. New Amsterdam was incorporated in
   1653.[4] Different founding dates have appeared on the seal throughout
   its history. Beneath the date is a ribbon that bears the legend
   SIGILLUM CIVITATIS NOVI EBORACI, which means "Seal of the City of New
   York". Eboracum was the Latin name for York, the titular seat of James
   II as Duke of York, for whom New York City is named.
   A laurel wreath, an ancient Greek symbol of victory, encircles the
   seal.

References

   1. https://en.wikipedia.org/wiki/Seal_of_New_York_City