Asparagus point prism is the standard style of prism that is most common for hanging lamps and are 4 inches tall. There is little difference between the new and old prisms as they are produced in almost the exact same way. To be able to tell the difference between old and new prisms is that; new prisms are connected by a "Harp" and old prisms use a singular piece of wire. All old and new prisms are produced by hand exclusively in Czechoslovakia/Czech Republic. Prisms are sold in sets of 32.