[Treaty of Breda. 1667]

Folio broadside (20 1/2 x 16 1/2 in.; 518 x 414 mm.), printed in black, large woodcut initial, signed and wax-sealed by seven "Embassadors and Plenipotentiaries" being Lord Denzil Holles and Sir Henry Conventry for Great Britain and Adolf Hendrik Ripperda, Hieronymus van Beverningh, Pieter de Huybert, Allard Jonghstal, Ludolph Tjarda van Starckenborgh for United Provinces (The Netherlands).

When New Amsterdam became New York: the proclamation of the Treaty of Breda

The Treaty of Breda, signed at the Dutch city of Breda, 31 July, 1667, by England, the United Provinces (Netherlands), France, and Denmark–Norway, ended the Second Anglo-Dutch War (1665–1667) in favor of the Dutch.
It was a uti possidetis treaty, common at the time, meaning that conquered territory and other property remains with its possessor at the end of a conflict. 

By this treaty, in the East Indies, the Dutch secured a worldwide monopoly on nutmeg and were allowed to ship German goods, if imported over the Rhine, to England.

In North America, Acadia was returned to France. And most importantly, the conquest of New Netherlands by a British expeditionary force under Admiral Richard Nicoll was confirmed, producing the Colonies of New York, New Jersey, Pennsylvania, and Delaware.

As communications were slow, special dates were established for the different parts of the world, as explained in the beginning of the last paragraph of the broadside.

Very rare. There are copies printed in Dutch.