Code 123 - Coded Data Field: Cartographic materials - scale and coordinates (Mandatory) (R)Indicator 1: Type of Scale Code Indicator 0 Scale indeterminable 1 Single scale 2 Multiple scales 3 Range of scales 4 Approximate scale Indicator 2: blankSubfield codes $a Type of Scale (Mandatory, Not repeatable)a = linear scale b = angular scale z = other type of scale (e.g., time scale, quantitative statistical scale)$b Constant Ratio Linear Horizontal Scale (Repeatable) $c Constant Ratio Linear Vertical Scale (Repeatable) $d Co-ordinates Westernmost Longitude (Not repeatable) $e Co-ordinates Easternmost Longitude (Not repeatable) $f Co-ordinates Northernmost Latitude (Not repeatable) $g Co-ordinates Southernmost Latitude (Not repeatable)Each subfield is fixed at 8 characters: Character position 0Hemispherew = west e = east n = north s = south Character positions 1 to 3Degree: 3 numeric characters, right justified, filled with zerosCharacter positions 4 to 5Minute: 2 numeric characters, right justified, filled with zerosCharacter positions 6 to 7Second: 2 numeric characters, right justified, filled with zeros$h Angular Scale (Repeatable)A 4 character number right justified and filled with zeros, giving the scale in terms of millimetres to a degree$i Declination Northern Limit (Not repeatable) $j Declination Southern Limit (Not repeatable) $k Right ascension Eastern Limits (Not repeatable) $m Right ascension Western Limits (Not repeatable)Character positions 0 to 1Hour: 2 numeric characters, right justified, filled with zerosCharacter positions 2 to 3Minute: 2 numeric characters, right justified, filled with zerosCharacter positions 4 to 5Second: 2 numeric characters right justified, filled with zeros$n Equinox (Not repeatable) $o Epoch (Not repeatable)