The development of lead glass continued through the twentieth century, when in 1932 scientists at the Corning Glassworks, New York State, developed a new lead glass of high optical clarity.
Produksi kaca timbal berlanjut selama abad 20, ketika pada 1932 saintis di Corning Glassworks, Negara Bagian New York, mengembangkan kaca timbal baru dengan tingkat kejelasan optik yang tinggi.