Q22.05. Mark 1 Restaurant/Buffet Coaches

Does anyone have any colour photographs of the interiors of BR Mark 1 RBR Restaurant/Buffet coaches built in 1960-61 to Diagram 24, by Pressed Steel (lot 30628, numbers 1644-1699) and Birmingham RCW (lot 30512, nos 1701-1738), either in their original layout as built with moveable seats or after refurbishments in the early 1970s when fixed seats were installed? (Tim Munday: 24905)