Map of Amsterdam showing a design for the flow of water to prevent odors and dirt. Designed by Gerrit ten Sande in 1765. Scale approx. 1: 25,000. With legend. The canals, locks and doors are indicated in colors. Roads and buildings are hardly signed. The map was again included unchanged in a report from 1767, issued by G. Tielenburg. Orientation: South-Southwest on top.
Source: Amsterdam City Archive