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Hi Allan. A couple of long established antique glass dealers I know have seen quite a few of these over the years, nearly always in the UK, suggesting that is where they originated. That said, these are common colours for antique glass, and so might be made in various places. The antique glass rolling pins with pink and/or blue feathering or stripes over white are sometimes attributed to Nailsea, but I am not sure that is correct.
Alan