Marble (toy) conventions. Additionally, many glass artisans produce art marbles for the collectors' market only, with some selling for thousands of dollars. Marbles are made using many techniques. They can be categorized into two general types: hand-made and machine-made. Marbles were originally made by hand. Stone or ivory marbles can be fashioned by grinding. Clay, pottery, ceramic, or porcelain marbles can be made by rolling the material into a ball, and then letting dry, or firing, and then can be left natural, painted, or glazed. Clay marbles, also known as "crock marbles" or "commies" ("common"), are made of slightly porous clay, traditionally
Elgin Marbles the marbles to decorate Broomhall House, his private home near Dunfermline in Scotland, but a costly divorce suit forced him to sell them to settle his debts. Elgin sold the Parthenon Marbles to the British government for less than it cost him to procure them, declining higher offers from other potential buyers, including Napoleon. The Parthenon Marbles acquired by Elgin include some 21 figures from the statuary from the east and west pediments, 15 of an original 92 metope panels depicting battles between the Lapiths and the Centaurs, as well as 75 meters of the Parthenon Frieze which decorated the