As one of the largest wargames model manufacturers in the US in the 1970s, it produced many historical and fantasy lines of models and became one of the first companies to cast figures based on licensed properties. In the late 1970s, the company manufactured figure ranges based on Robert E. Howard's Conan the Barbarian, J.R.R.Tolkien's The Lord of the Rings (inspired by the 1978 Ralph Bakshi film adaptation), and Edgar Rice Burroughs' John Carter, Warlord of Mars. Known finally as Heritage USA, the last incarnation of the company folded in 1983 .