Special Graphics Characters
| Octal Code | Normal Set | “Special Graphics” Set | |
| 137 | _ | Blank | |
| 140 | ` | Diamond | |
| 141 | a | Checkerboard (error indicator) |
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| 142 | b | Horizontal tab | |
| 143 | c | Form Feed | |
| 144 | d | Carriage return | |
| 145 | e | Line feed | |
| 146 | f | Degree symbol | |
| 147 | g | Plus/minus | |
| 150 | h | New line | |
| 151 | i | Vertical tab | |
| 152 | j | Lower-right corner | |
| 153 | k | Upper-right corner | |
| 154 | l | Upper-left corner | |
| 155 | m | Lower-left corner | |
| 156 | n | Crossing lines | |
| 157 | o | Horizontal line – Scan 1 | |
| 160 | p | Horizontal line – Scan 3 | |
| 161 | q | Horizontal line – Scan 5 | |
| 162 | r | Horizontal line – Scan 7 | |
| 163 | s | Horizontal line – Scan 9 | |
| 164 | t | Left “T” | |
| 165 | u | Right “T” | |
| 166 | v | Bottom “T” | |
| 167 | w | Top “T” | |
| 170 | x | | Vertical bar | |
| 171 | y | Less than or equal to | |
| 172 | z | Greater than or equal to | |
| 173 | { | Pi | |
| 174 | | | Not equal to | |
| 175 | } | UK pound sign | |
| 176 | ~ | Centered dot | |
| Note 1: | Codes 1528-1568, 1618, and 1648-1708 are used to draw rectangular grids; each piece of this line drawing set is contiguous with others so that the lines formed are unbroken. |
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