There is an exception to generalisation. When BR(WR) re-introduced chocolate and cream livery for selected named trains in 1957, most of the stock painted in this livery was BR Mk1. However one or two GWR coaches, mainly restaurant cars, also received this livery. In addition there were one or two repainted GWR slip coaches. When slipping ceased a year or two later, the slip coaches were relegated to secondary services. I have some video featuring one of these chocolate and cream slip coaches in about
1960 (?) on a Llandovery-Llanelly stopper, hauled by a 8750 class pannier in black livery. The other coaches in this set were in maroon.I also have photos of the Pembroke Coast Express between Whitland and Carmarthen with the usual Mk1 chocolate and cream set topped by three maroon Gresleys coaches and hauled by a 81xx prairie. A batch of LNER coaches was regularly used to strengthen WR internal services on Summer Saturdays in 1961/2 after the cull of older GWR stock.
David
David