| Main trade | Cement |
| Name | Jumbo |
| Port of Registry | London |
| Off. No. | 85141 |
| Tonnage | 50 |
| Tonnage system | 0 |
| Where built | Brentford |
| Builder | 0 |
| When built | 1882 |
| Length ft. | 0 |
| Beam ft. | 0 |
| Draught ft. | 0 |
| Changes | 0 |
| Rig/Hull | 0 |
| Owners | 1916 Cotton Powder Co., City, London |
| History | This is mentioned as belonging to Masons but there is no trace of a likely barge. There is another Jumbo but it was a lift barge. |
| OS Ref | 0 |
| Location | 0 |
See http://www.harwichanddovercourt.co.uk/warships/repair-ships/
http://www.naval-history.net/xDKWW2-4201-40RNShips2Home.htm
Degaussing Mobile Wiping Unit
Degaussing is the process of decreasing or eliminating a remnant magnetic field. It is possibly named after the Gauss unit of magnetism. Degaussing was originally applied to reduce ships’ magnetic signatures during WWII. Degaussing is also used to reduce magnetic fields in CRT monitors and to destroy data held on magnetic data storage.
Edine
Degaussing Range Boat – Harwich 1942
Jumbo
Degaussing Mobile Wiping Unit – Harwich 1942
Torchbearer
Degaussing Mobile Wiping Unit – Harwich 1942
