| Model | Platinum Line Leonardo Sketch Pen Mechanical Pencil 5.5mm |
| Ident No. | 108963 |
| Writing System | |
| Writing System | Sketch Pen |
| Nib | – |
| Features | |
| Barrel | Black precious resin inlaid with Montblanc emblem |
| Cap | – |
| Trim | Three platinum-plated rings embossed with Montblanc brand name |
| Clip | – |
| Special Characteristics | Integrated pencil sharpener |