A pretty piece.
Certainly doesn’t match any Davidson pattern (registered or otherwise) that I am aware of, and neither does it seem to match any of the Burtles, Tate & Co. designs.
The Greener & Co. pattern from their registered design number 304505 (registered 3 September 1897) seems not to be too dissimilar (though the pattern in the ‘loops’ is of hobnails, whereas the pattern within the loops of the covered butter dish shown seems to be of rosettes). Some examples of Greener & Co.’s RD 304505 are unmarked. The design is known in clear, opalescent blue and opalescent yellow glass). The Greener & Co. yellow opalescent glass does vary in tone (more often than not a slightly pale greenish-yellow) and the degree of opalescence is also quite variable.
I attach photos of some examples for comparison, though I don’t have a photo of a covered butter dish in the pattern to show.
Greener & Co. designs sometimes had pattern numbers, but I don’t know of any given actual names by the manufacturer.
Plagiarism of designs (pattern, shape and colour) was rife at the time. Could it be an American piece, perhaps?
Fred.