| Year | 1974 |
| Date | 19-Apr |
| Volume | 140 |
| Issue | 3,487 |
| Page | 404 |
| Category | Workshop |
| Part | 7 |
| Title | Workshop Equipment and Materials |
| Author | "Tubal Cain" |
| Notes | Wolf-Jahn milling, drilling and jig-boring machine, G.P.Potts milling and drilling spindle, brazing tackle etc., Sievart (Sievert?) |