Caturmurthy

Have been in the indian museum in Dahlem/Berlin, with a big collection of ancient Forms and murthies of Hindu/Jaina/buddhism. Fond this one here, Catur Murthi - for the four directions, normally found on the Temple Vimana carved and installed. This is made in red sandstone, of Gupta Tradition (3.-5th century AD) were one finds Sri Narasimha (south direction), Sri Vaikuntanatha (standing Vishnu for west direction), Sri Sri Bhu Varaha (North direction) and Sri Hayagriva (east direction). May it was used on top of a Temple instead of Kalasha (pots representing the Vedas).
Scientist speak normally that Narasimha was not worshipped before Gupta, but one finds clear indications that Narasimha was worshipped much before Gupta and Maurya. As the Rig Veda definds Rudram Ganam (vedic recitation) to be the personification of Lord Narasimha, other references like Manyu sukta clearly shows the worship of Lord Narasimha in vedic times.