In order to ascertain the proper position of a number in a block, the length or width of the block (depending upon whether the length or width abuts the street or avenue) shall be divided by 50 (except where two or more tiers of blocks are given but 100 numbers jointly), and this will give the relative distance between numbers. Where two or more tiers of blocks are together given but 100 numbers, then the total width or length of such tiers of blocks (depending upon whether the width or length abuts the street or avenue), exclusive of street intersections, shall be divided by 50, and the result will be the relative distance between numbers. (Ord. 369 § 8, 1917)