One of these collectors was Santiago Agurto Calvo, an architect by profession, who was Rector of the National University of Engineering in Lima. He organised searches in ancient cemeteries, and in August 1966 found such a stone in the Toma Luz sector, Callango district, in Ica Valley. The context corresponded to the Tiwanaku culture. He reported his discovery to the Regional Museum in Ica city, and was accompanied on further expeditions by its curator, the archaeologist Alejandro Pezzia Assereto. In September 1966 in Uhle Hill cemetery, De la Banda sector, Ocucaje District, they found, for the first time, an engraved stone with certain provenance in a tomb of the Paracas culture. This stone was fairly flat and irregular in shape, approximately in size. On it was carved a design which might be abstract, or could be taken as a flower with eight petals. Agurto published the discovery in a Lima newspaper.