From the previous thread on the HD8 model, most of the photographs showed yellow machines, so if the paint closest to the bare metal on yours is yellow, that should not only tell you the correct colour, but put it into a model-year group as well. Surely Greenfield's records will show the range of years in which they painted the HD8s yellow. Also, I think you said yours has some differences from Rodeobob's pictures, making you think yours may be slightly newer. If you can list those differences here it might jog somebody's memory, as well as improve our HD8 archive.