| Issue 2017 Vol 17 | Overview of A.W. Faber-Castell Slide Rule Dating Chronology 1892-1920 |
| Issue 2017 Vol 17 | Overview of A.W. Faber-Castell Slide Rule Dating Chronology 1892-1920 V2 |
| Issue 2020 Vol 20 | Richard Delamain(e) - Hero or Villain? |
| Issue 2021 Vol 21 | Dipping and Gauging Video (300MB Will take some time to load!) |
| Issue 2021 Vol 21 | Picolet Instructions |
| Issue 2021 Vol 21 | Dapausi Instructions |
| Issue 2022 Vol 22 | Board of Longitude Act |
| Issue 2023 Vol 23 | The Present for a King |
| Issue 2023 Vol 23 | The History of Planimeters |