Home » Blog » Dalle de Verre Stained Glass Window at Holy Trinity Lansdale June 25, 2013 Dalle de Verre Stained Glass Window at Holy Trinity Lansdale Pin It Dalle de Verre is a stained glass technique where slabs of glass are cut or broken and the chunks are set into an epoxy mixture to bind it all together. Stratoz took a cool close up of one Dalle at his church.