Hi. I think the confusion here arises out of one of the obvious errors in RSW's 2nd book 'Modern Glass' On page 33 Ronnie incorrectly attributes Baxter's Glacier range as being produced by Dartington. The maker is of course Whitefriars. I have no knowledge of Baxter working for Dartington. There are a few mistakes in the book it's still wonderful.
Cheers,
Richard