I bought this today thinking it was made by Dartington but as far as I can tell it was not. On reflection the colour is too green to be midnight.
So, after checking a few books and having a look around I am none the wiser. By chance I notice Fieldings have one in their upcoming auction and they seem a bit lost too, describing it as "Scandinavian" and "possibly Orrefors" (not quite what I would call cinnamon either

). At least they aimed a bit 'higher' than me.

As far as I can tell not Whitefriars, Dartington or Holmegaard, which at least is a start. Polished pontil mark and ten inches tall (25.5cm).
Thanks
John