| Improved pattern, made of semi brass, semi aluminum, with metal fittings, with castors, clamps, perpendicular socket with tracing point, pencil holder and fulcrum pin with scale of proportions, engraved on arm, Complete in polished wooden case. |
| 600mm(24”) |
| 750mm (30”) |
| 900mm(369”) |
| 1050mm (42”) |
| 1200mm (48”) |
| 1350mm(54”) |
| 1500mm(42”) |
