Think I've nailed it...Carlton 1935/36 Catalogue, although mine is hand dated 1940 on the underside of both heads.The 'Green' is listed as "Greenwood Pearl" and mine is either "Silver Butterfly Wing" or "Black Pearl".The box of hardwear that came with my snare has all the supporting Console and Trap fixings and the original snare stand, cowbell, woodblock and kitchen sink.Hope this answers the original Mystery Green Snare question once and for all.
This only has eight lugs.