Made byViartec THF. Multiple examples from this range can be found online with labels that read"Viartec Hand Made in Spain". 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.
