In 1971, Three Dog Night's "Joy to the World" topped the charts."Billy Jack" ruled at the box office.And British Designer Rodney Kinsman's Omstak Chair became the must-have seat to sit in in stylish modern homes and offices around the world.Originally designed for the Italian firm Bieffeplast, the chair was a classic example of high-tech design.Its seat and back were molded from a sheet of steel coated with epoxy resin, and true to the modernist aesthetic, the trademark holes that gave the chair its style were actually functional, adding to its stability.Best of all, you could store as many Omstaks as you wanted – true to their name, the chairs were stackable – up to 25 of them at a time!