| 33 / | HD | GEOMETRICAL INSTRUMENTS |
| 227 | DF | STRAIGHT-LINE LIGHT RAY TYPE {20} |
| 233 | DF | .~ Gun sight {9} |
| 245 | DF | .~.~ Telescopic type {3} |
| 247 | ![]() | .~.~.~ Movable relative to base {2} |
| 248 | DF | .~.~.~.~> Vertically and laterally adjustable |
| 249 | DF | .~.~.~.~> Movable to nonuse position |