The best available answer is that they were literally the earliest known works of art, practical tools transformed into captivating aesthetic objects, contemplated both for their elegant shape and their virtuoso craftsmanship.
Najbolji odgovor koji imamo jeste da su to bukvalno najstarija poznata umetnička dela praktični predmet, alat, pretvoren je u upečatljiv umetnički predmet, privlačan kako zbog elegantnog oblika tako i zbog vrhunske izrade.