Profiles of the streets to be dedicated, showing existing surface elevation and proposed grade of such streets, shall be filed with the Zoning Commissioner. Profiles shall be made upon tracing cloth to the scale of one inch horizontal equals fifty feet, and one inch vertical equals five feet. When required by the Zoning Commissioner, a topographical map of the territory to be allotted shall be furnished in addition to the street profiles.
(1955 Code. §1103.06)