Greensboro, PA, United States
Old Glassworks. On this site, the first glass factory west of the Monongahela River was established in 1805 through the stimulating influence of Albert Gallatin, Secretary of the Treasury under Thomas Jefferson. Glass was made here until 1849.
Listen to the audio guide for Blue plaque № 28990 Free on WIP — starts by itself when you arrive, even with the screen off