| Year | 1933 |
| Date | 24-Aug |
| Volume | 69 |
| Issue | 1,685 |
| Page | 173 |
| Category | General |
| Part | |
| Title | Making Small Pressure Gauges |
| Author | H.B.Green |
| Notes | Two sizes of pressure gauges with dials removed, the link block, the pivot block, completed pressure gauge with syphon tube, the syphon, the dial and needle, final remarks |