| Early Sets |
| Traditional Sets |
| Later Sets |
| Major Makers |
| Instruments |
| Miscellanea |
| W F Stanley |
| A G Thornton |
| W H Harling |
| Elliott Bros |
| J Halden |
| Riefler |
| E O Richter |
| Kern, Aarau |
| Keuffel & Esser |
| Compasses |
| Pocket compasses |
| Beam compasses |
| Dividers |
| Proportional dividers |
| Pens |
| Pencils |
| Rules |
| Protractors |
| Squares |
| Parallels |
| Pantographs |
| Sectors |
| Planimeters |
| Map Measurers |
| Miscellaneous |
| Materials Used |
| Who made them |
| Who made these |
| Addiator |
| Addimult |
| Other German |
| USA |
| Miscellaneous |
| Microscopes |
| Barometers |
| Hydrometers & Scales |
| Pedometers |
| Other instruments |
| Workshop Measuring Tools |
| Catalogues & Brochures |
| A Collectors Tale |
| Abergavenny Instruments |
| Spring Design Rule |
| Sperry Sonar Calculator |
| Thornton 6039 1/2 |
| Hudson slide rules |
| Hudson continued |