Hello! I have just purchased the Metcalfe red brick retaining walls to place on my British GWR branchline layout. I also have a Superquick tunnel entrance / road bridge it that is a somewhat more sandy brown shade of brick. Can I use both styles of brick on my layout and still be prototypic? ( eg; perhaps there was one session of building early on, and then some years later a second round of construction, using a different brick colour? ) Thanks for any advice you can give me.
