AR box in shape of rook « ‹ of 15 › » Argentina1978Ceramic/resin? K 10.8; p 6.5Purchased during the 1978 Olympiad in Buenos Aires « ‹ of 4 › » Argentina1978Wood K 11.4; p 5.8Design by Demetrio Karavokiris, Campana, Argentina.Modelo Funcional Linea Geometrica for Unicefno. 6 of 100 numbered sets « ‹ of 3 › »