The Mk1 RBR is a Mk1 Restaurant Buffet Coach containing a kitchen and a serving buffet counter. As well as these features, the Coach would also feature seating, usually with a capacity of 23 passengers.
Hornby R40218 Mk1 RBR BR InterCity 1646
BNIB OO Gauge Hornby R40218 MK1 Coach BR InterCity, Mk1 RBR, 1646
Hornby OO Gauge MK1 RBR Restaurant Buffet Car Coach Mid-Grey Plastic Roof L7793
Hornby R40217 BR InterCity Mk1 RBR Coach E1696 - Era 7 OO Gauge