Okay, this is my aim for the finish.
I'm going for a water based stain finished with oil, which worked well for the resonator (see first post), and I do have some red Liberon concentrate left over from that and it gave a nice "shaded" effect with a little work. Right now I'm intending to start with a wash of basic golden pine wood stain, probably Morrells, which I will increase in density until I get the right colour, then add other layers using some of the red then black Liberon in increasing measures with each application, as other have done before. Would have liked to have gone the Dingotone route, but understand that cannot be shipped to the UK and my budget has already taken quite a hit with the UK's custom charges, so can't afford Colortone or the like. Doubt that there was much choice in the 'States back in the early 'forties so think this might give a realistic finish, but would welcome other opinions.