Not sure how the picture will turn out but here is what I've got. Boiled it for a few hours, havelon and needle nose for a few more hours then a good blast from the pressure washer. I then turned to the hydrogen peroxide. I'm using a 40 volume, have done at least 10 coats of a cream solution over the past week or so. Its getting pretty white, but still some real stubborn yellow around the eyes and top of the skull. I haven't soaked in the peroxide, just been brushing it on, leave for a day or two, wash then apply again. Keep on keeping on with this or what am I missing to get that last yellow out of it? Thanks.