| Year | 1911 |
| Date | 09-Nov |
| Volume | 25 |
| Issue | 550 |
| Page | 437 |
| Category | Railway |
| Part | |
| Title | Model Signalling Apparatus |
| Author | W.C.Williams (Durban. S.A.) |
| Notes | General view, another view showing switch hook in normal position & signal bell, detail view of Umbilo station instrument, some of the mechanism |