Bottle glass, mirror in old window. Includes swarf both fired and unfired. I lived in a loft at 120 Potter St., Cambridge, MA in 1965 and 1966. It was an old factory building that was mostly empty. I had a furniture shop and was working as an architectural draftsman. My space was one big room, about fifty feet square. There were some great parties. So many people dancing that the floor bounced. We had to put the record player on a hanging lumber rack. To change a record you had to climb a ladder.