Sheraton, the furniture maker used 'red oil' to colour mahogany.Here is a modified version of his 'red oil' recipe.
Take 4oz of alkanet root, broken into short strips,as much opened with the hand as possible, so that the bark of the root which tinges the oil may fly off, steep in 1pint of raw linseed oil to which you have added 1 tablespoon of the oil of the spruce, steep for a week and strain it through a cloth.
This makes a strong colour, you may have to dilute the colour with more linseed oil to suit your need.Oil of the spruce I believe is turpentine.
Should you require other traditional recipes I may be able to help.
Salopian