| Name | London Name Plate 6B / 3206 Protractor Navigation |
| Front Scales | 1) 2) 3) = 4) |
| Back Scales | |
| Type of Rule | protractor |
| Material | plastic |
| Dimension (mm) | 140x222x4.5 |
| Area of Use | aviation |
| Origin of Rule | Herman van Herwijnen |
| Match Number | 2226 |
| Comment | |
| Thumbnail |  |