| Present Location | Margate |
| County Location | Kent |
| Designed For | SR |
| Build Location | Eastleigh |
| Built by | BR |
| Diagram number | 2126 |
| Lot number | 3638 |
| Type | DMBTO |
| First Number | 12796 |
| Later Numbers | S12796S SET 4732 |
| Present Number | 12796 |
| Gauge | 4ft 8 1/2in |
| Wheel Arrangement | 4-w bogies |
| Original Underframe | Yes |
| Original Bogies/Wheelsets | Yes |
| Additional Notes | 4-SUB, later Class 405. Built on ex-SECR "3-SUB" underframe from Set 8310. P 1984 by BR, initially at Brighton and Selhurst until 1996. At Long Marston prior to move to Coventry by 1999. With 10239, 12354 and 12795 (qv) forms 4-SUB Unit 4732. 07/06/2018: following closure of Electric Railway Museum at Coventry, now located at Locomotive Storage Ltd site at Westwood, Margate (part of Hornby works, being planned for a future public railway heritage attraction to be called the One:One Collection). |
| Owner | 4-Sub Association |
| External Structural Condition | Fair |
| Internal Structural Condition | Fair |
| Underframe Condition | Good |
| External Finish | Satisfactory |
| Internal Finish | Satisfactory |
| Degree of External Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Internal Originality | As built/last Passenger rebuild (BR or before) |
| Degree of Underframe/Running Gear Originality | As built/last Passenger rebuild (BR or before) |
| Degree of External Authenticity | Good |
| Degree of Internal Authenticity | Good |
| Degree of Underframe Authenticity | Good |
| Rarity | Few |
| Historical Importance | Some Importance |
| Storage | Secure Building |
| Operating | No |
| Survey Date | 13/07/2013 |
| Surveyor | David Wigley |
| Photo Date | 10/09/2021 |
| Photo by | Christopher Hurst |
| At Risk | No |
| Date Record Last Updated | 28/11/2021 |
