In the not-too-distant future, I shall be starting a "Golden Arrow" models version of the Mk3 version unrebuilt Merchant Navy loco, and I've decided I want to paint it in the experimental BR "Express Blue", which BR trialled for a period during the mid 50's I understand. Does anyone know what the correct colour for this is, preferably Railmatch Acrylic, as I don't use enamel paints. I imagine since Hornby did several loco's (including my rebuilt Merchant Navy "Canadian Pacific") in that colour, it might feature in their Humbrol acrylic paint range, so I could use that if I can't find a "Railmatch" colour. Any help/advice appreciated. Keith.