Bay of Nagasaki
- Author: KEULEN, Johannes van
- Publication place: Amsterdam
- Publication date: 1750.
- Physical description: Manuscript map in brown ink and wash colours, contemporarily laid down on paper.
- Dimensions: 505 by 580mm. (20 by 22.75 inches).
- Inventory reference: 15644
It was a common practice for the van Keulens to print sheets with a system of rhumblines and latitude scales, to be used as a base for manuscript maps. However, surviving examples, particularly of Far Eastern subjects are very scarce. This chart depicting Nagasaki seems to have been inserted in an example of the atlas, presumably in place of the printed version, hence its survival in such good condition. Also depicted are manuscript decorative compass-rose and many names of islands offshore the Kyushu coast, including Nangezakki, De Cavallos Eylanden, Spitze klip, Nemde, Henmer de kiekens, Branding, Capel, Zierkseesche Toren, Style klippen, De Boots Klampen, Hoog gebergte, Branding, anchorage mark near Papenburg at the entrance of the bay.
Decima is clearly marked and shown, it was an artificial island built in 1634 to house Portuguese traders and subsequently the Dutch V.O.C.. During most of the Edo period Decima was the single place of direct trade and exchange between Japan and the outside world.
We are only able to trace two other copies.