Hong Kong Map Advertising New Skills to Fisherman

Interesting fishing map extending from Hainan Islands in the southwest to Xiamen in the northeast, centered on the Hong Kong - Macau area.

The map shows the fishing grounds in the area, highlighting water depths and obstructions. In red is a compass rose, accompanied by a fishing boat and a bright fish. In the top left is an inset showing fishing districts 漁獲區. Two scales help the user to orient themselves.

In the lower right is a note, reading:

Do you want to improve your catch? Then you should ask your market liaison agent about how to improve your knowledge of piloting, navigation, mechanics and shipbuilding knowledge.

你想有更好渔获成绩吗？那你就该向市场联络員查詢有関怎樣才能學到領航，航海術，機械及造船等知識

The map was made by Hong Kong Fisheries Service 香港魚農處制, an advertisement to the fishing industry they monitor. It was likely distributed for free to interested fisherman; the survival rate of such ephemeral, but historical, objects is very low.