Tim Baker has provided the photo on the left, taken before delivery, and the following information, which is supplemented with details from Parkin's "British Railways Mk.1 Coaches".
This BG entered service as No.E81478, a 90 mph vacuum-braked Gangwayed Full Brake (coded NAV). By 1983 it was one of 258 of these converted to 100 mph operation, with dual (air and vacuum) brakes and B4 bogies, and it was re-numbered to 92128 (coded NE).
It was converted to an HST Barrier vehicle No.6334 (coded NEA) on 15 April 1994, and painted in Porterbrook livery April 1995. Purchased by the Bluebell from Porterbrook, it is intended to use the vehicle for storage purposes at Sheffield Park, in replacement of the GWR designed "Monster" van.
During 2005 the coach was painted green on its east side, and the roof has been stripped back, made waterproof, and re-painted. The other side has now been similarly painted green. It is currently used as a store.
Type: Full Brake (BG), Diagram 711
Built: 30 June 1957, Lot 30400 by Pressed Steel
Original No: 81478
Other Nos: 92128, 6334
Length: 64' 6" over body
Original Weight: 31 Tons
To Bluebell: October 2003