CIRCA 1900 Low-EOur Solar 1900 low e glass is made here in the USA and sold exclusively by Hollander Glass. A truly innovative breakthrough in the energy efficient Restoration Window Glass market. Our Circa 1900 Low e is made in same manner as our Circa 1900, one sheet at a time by the heat cast method. However were it is truly different is that we are using as base glass a domestic Pyrolitic low e glass. Low e glass is a type of treated glass that conducts visible