German glass: Brockwitz, Friedrich, Hirschberg, Ingrid, Muller & Co, Walther & Sohne, & Walther Glas. Unmarked and factory unknown for now. British glass: Bagley, Caithness, Chance Brothers, Dartington, Heron, Isle of Wight Studio, Jobling, John Walsh Walsh, Langham, Monart, Royal Brierley, Sowerby, Stevens & Williams, Strathearn, Stuart & Sons, Thomas Webb, Vasart, Wedgwood, & Whitefriars.
