Here is a photo of a smoky-topaz glass lidded pot in the same pattern. I don’t have the size for this lidded pot but it seems to be either 528 or 514.
(Permission for the re-use of this image on the GMB granted by steptoe*).
Does anyone have photos of other pieces from the set, or examples of pieces in other colours, please? – the catalogue gives the colours as white [presumably clear?], yellow, blue, rose, smoky-topaz and green.