These are pieces of glass recovered at one of the glass houses in Lauscha, Germany, where all of the antique handmade marbles were produced in the late 19th century. After the Berlin wall came down, diggers began recovering this historic glass. About half of the glass is cane-end pieces, the rest are seconds, damaged marbles, bits of cane and other glass waste that was discarded at the factory site. Own a piece of marble history!