The final map shall be clearly and legibly drawn in black waterproof India ink upon good tracing cloth; except that affidavits; certificates; and acknowledgments may be legibly stamped or printed upon the map with opaque ink. Signatures shall be in opaque black ink. The dimensions of each sheet of such map shall be eighteen inches by twenty-six inches. A marginal line shall be drawn completely around each sheet; leaving an entirely blank margin of two inches at the left edge and one inch at the other three edges of the sheet. The scale of the map shall be sufficient to show all details clearly and in no case shall be less than one inch equals one hundred feet; nor greater than one inch equals forty feet. Enough sheets shall be used to accomplish this end. The number of each sheet and the total number of sheets comprising the map shall be stated on each of the sheets and the relation of each adjoining sheet shall be clearly shown by a small key map on the first sheet. Each sheet of such map proper shall show the date of the survey; north point, and written and graphic scale. The map shall be so made and shall be in such condition when filed that good legible prints and negatives can be made therefrom. The location of the subdivision within the city shall be shown by a small scale map on the first sheet. (Ord. 1046 NCS §1 (part), 1972; prior code §22.6.301.)