I was sure this was a Whitefriars vase until I went to look it up in my books.
It is 6.75" tall (172mm) and 3.75" across the top (95mm), the colour looks to me like either the Bronze colour that Whitefriars made for Wuidart, or their Twilight. It has heavy internal optic ribbing, and I thought it was a James Hogan and William Wilson design from c. 1937 or an earlier design for Wuidart. It is very well made, and has a slightly concave base with a ground out and polished pontil. Can anybody confirm what it is please?